D. Incorrect! That is what a phylogenetic tree intends to depict.
|
|
- Brian Gray
- 5 years ago
- Views:
Transcription
1 Genetics - Problem Drill 24: Evolutionary Genetics No. 1 of A phylogenetic tree gives all of the following information except for. (A) DNA sequence homology among species. (B) Protein sequence similarity among species. (C) Morphological similarity among species. (D) Evolutionary relationships among species. (E) Genetic distance among species. A phylogenetic tree gives information about DNA sequence homology among species. The more homology they share, the less distance there is on a tree. A phylogenetic tree also implies protein sequence similarity among species, which is the same as DNA sequence. C. Correct! A phylogenetic tree does not give information on the morphological similarity among species because morphological similarity can be from homoplasy. That is what a phylogenetic tree intends to depict. A phylogenetic tree gives information about genetic distance by giving DNA/protein homology among species. A phylogenetic tree is a direct diagram on the comparison of DNA/protein sequences among species. (C)Morphological similarity among species.
2 No. 2 of Two closely-related spider species are found to live in the same area but are completely isolated reproductively. What is the most likely speciation mode for these two spiders? (A) Allopatric (B) Parapatric (C) Peripatric (D) Sympatric (E) None of the above Allopatric means speciation through geographic separation; this is not the case here. Parapatric means a continuously distributed population; this is not the case here. C. Incorrect! Peripatric means mostly geographic, a small population isolated at the edge of a larger population. D. Correct! Sympatric is most likely what happened in this case, which is due to genetic drift; geographic factors do not play a significantly role here. There is one correct answer above. There are four modes of speciation, three of which are related to geography; only sympatric occurs without geographic influence. (D)Sympatric
3 No. 3 of A butterfly species has a selection against a recessive allele; due to a change in the environment, about 20% of homozygous recessive individuals die. The allele frequency for a is 0.4 before the environmental change. What will be the allele frequency for a after the population reaches equilibrium again? (A) 0.20 (B) 0.60 (C) 0.40 (D) 0.37 (E) is the selection coefficient for a; the portion that die after selection, s. 0.6 is the allele frequency for A before selection, q. C. Incorrect! 0.4 is the allele frequency for a before selection, p. D. Correct! 0.37 is the allele frequency after selection, p is the allele frequency for A after selection. The allele frequency for a is p = 0.4; therefore, we know the allele frequency for A is q = 0.6. The selection coefficient s for a is s = 0.2. According to the formula, the new allele frequency for a is p = p/(1-sq 2 ) = 0.4/ (1-0.2*0.6 2 ) = From this, we know the allele frequency for A will be = (D)0.37
4 No. 4 of Assume an insect species has selection against both homozygous AA and aa. 10% of the AA genotype will not have offspring and 15% of the aa genotype cannot survive. What will be the allele frequency of A after the population reaches equilibrium? (A) 0.9 (B) 0.8 (C) 0.4 (D) 0.2 (E) 0.5 There is no way to arrive at 0.9 as the answer. p* = s/(s+t) = 0.1/( ) = doubled the rate. C. Correct! p* = s/(s+t) = 0.1/( ) = 0.4. This is only half of the calculated rate. There is no way to arrive at 0.5 as the answer. This is a typical heterozygote superiority problem. The selection coefficient for AA is s = 0.1, for aa t = Although the initial allele frequency is unknown, the allele frequency of A can be calculated by formula p* = s/(s+t) = 0.1/( ) = 0.4. (C)0.4
5 No. 5 of Synonymous substitution rate is usually greater than non-synonymous substitution; the reason is. (A) All non-synonymous substitutions are deleterious to the organisms. (B) The rate of non-synonymous substitution equals the rate of mutation. (C) The synonymous substitution does not change the amino acid sequence; therefore, they usually do not affect the protein function. (D) The synonymous substitutions are more useful than non-synonymous substitution. (E) The non-synonymous substitution occurs outside of the coding sequence. Not all non-synonymous substitution is deleterious; some may be favorable in certain environments. The rate of non-synonymous substitution does not equal the rate of mutation. C. Correct! Synonymous substitution has another name; it is also called a silent mutation. These do not change amino acid sequence and do not affect protein function in general. There is no comparison in terms of use for synonymous substitutions and nonsynonymous substitution. The non-synonymous substitution occurs within a coding sequence. Change in nucleotide sequence is an important force for evolution. (C)The synonymous substitution does not change the amino acid sequence; therefore, they usually do not affect the protein function.
6 No. 6 of What are the driving forces of evolution (choose the best answer)? (A) Natural selection and stability of an organism s genome. (B) Mutation, natural selection and migration. (C) Mutation, natural selection, genetic drift and migration. (D) Evolution has only one driving force, migration. (E) The driving forces for evolution include migration and under-population. Genetic drift and changes in an organism s genome is one of the driving forces of evolution. Mutation, natural selection, genetic drift and migration are the driving forces of evolution. C. Correct! Mutation, natural selection, genetic drift and migration are the driving forces of evolution. Migration is one of four main driving forces, along with mutation, natural selection, and genetic drift. Under-population would cut down on the pressure and competition for resources that contributes to natural selection. There are four main driving forces in evolution: natural selection, mutation, genetic drift and migration or gene flow. (C)Mutation, natural selection, genetic drift and migration.
7 No. 7 of Which of the following statements about Darwinian fitness (W) is correct? (A) Fitness (W) is defined as the relative reproductive ability of a genotype. (B) Fitness (W) is defined as the reproductive ability of the phenotype. (C) Relative fitness is the absolute number of surviving progeny of one genotype. (D) Darwinian fitness only applies to one single generation. (E) Relative fitness is the ratio between the numbers of individuals with that genotype after selection to those before selection. A. Correct! Fitness (W) is defined as the relative reproductive ability of a genotype. Fitness (W) is defined as the relative reproductive ability of a genotype. C. Incorrect! Relative fitness is the average number of surviving progeny of one genotype, compared with the average number of surviving progeny of a competing genotype after a single generation. Darwinian fitness, such as relative fitness, includes numbers of progeny from 2 generations. Absolute fitness is the ratio between the numbers of individuals with that genotype after selection to those before selection. Fitness W is defined as the relative reproductive ability of a genotype. W (fitness) is usually equal to the proportion of an individual s genes in all the genes of the next generation. Absolute fitness is the ratio between the numbers of individuals with that genotype after selection to those before selection. Relative fitness is the average number of surviving progeny of one genotype, compared with the average number of surviving progeny of a competing genotype after a single generation. (A) Fitness (W) is defined as the relative reproductive ability of a genotype.
8 No. 8 of Selection coefficient. (A) (S) is related to the unchanged population. (B) (S) is a measure of natural selection. (C) Can be calculated using the following formula: S=1/W. (D) Calculations, including the term W, represent genetic wobble. (E) Is independent of the effects of generation changes. The selection coefficient (S) is a measure of natural selection. B. Correct! The selection coefficient (S) is a measure of natural selection. C. Incorrect! The selection coefficient is calculated using: S=1-W. The W represents the Darwinian fitness. Because W (fitness) is in the equation to calculate the selection coefficient, the relative changes between 2 or more generations does influence this. The selection coefficient (S) is a measure of natural selection. S ranges between 0 and 1. When S=0, the population is in Hardy-Weinberg s equilibrium. When S=1, the allele will disappear. (B)(S) is a measure of natural selection.
9 No. 9 of Which of the following statements about peripatric speciation is correct? (A) When a population is split into two geographically isolated ones, this is known as peripatric speciation. (B) Peripatric speciation is when the geographic zones of two diverging populations merge. (C) Peripatric speciation is when a new species is formed in small isolated peripheral populations, which are not permitted to exchange genes with the main population. (D) During peripatric speciation, new populations exchange genes with each old population. (E) Geography plays no role in peripatric speciation. When a population is split into two geographically isolated ones, this is known as allopatric speciation. Peripatric speciation is when a new species is formed in small isolated peripheral populations, which are not permitted to exchange genes with the main population. C. Correct! Peripatric speciation is when a new species is formed in small isolated peripheral populations, which are not permitted to exchange genes with the main population. During peripatric speciation, peripheral populations are prevented from exchanging genes with the main population. Geography does play a role; the isolated population is prevented from interacting genetically with the main population. In peripatric speciation, a new species is formed in small isolated peripheral populations, which are prevented from exchanging genes with the main population. (C)Peripatric speciation is when a new species is formed in small isolated peripheral populations, which are not permitted to exchange genes with the main population.
10 No. 10 of What is reinforcement in evolutionary genetics? (A) Reinforcement is the process by which natural selection increases reproductive isolation. (B) Reinforcement is the process by which natural selection decreases reproductive isolation. (C) This process takes place when two species are separated. (D) With reinforcement, if the hybrids are superior or equal, then the two species will remain separated. (E) Reinforcement stops when the reproductive isolation is incomplete. A. Correct! Reinforcement is the process by which natural selection increases reproductive isolation. Reinforcement is the process by which natural selection increases reproductive isolation. C. Incorrect! Reinforcement takes place when two species are separated and then come back together. With reinforcement, if the hybrids are superior or equal, then the two species will merge. Reinforcement stops when the reproductive isolation is complete. Reinforcement is the process by which natural selection increases reproductive isolation. Reinforcement occurs after two populations of the same species are separated and then come back into contact. If their reproductive isolation was complete, then two incompatible species exist and no further reinforcement occurs. If their separation was not complete, then they may interact. Hybrids may be infertile or fertile but less fit, in which case reinforcement takes place. (A)Reinforcement is the process by which natural selection increases reproductive isolation.
GENETICS - CLUTCH CH.22 EVOLUTIONARY GENETICS.
!! www.clutchprep.com CONCEPT: OVERVIEW OF EVOLUTION Evolution is a process through which variation in individuals makes it more likely for them to survive and reproduce There are principles to the theory
More informationProcesses of Evolution
15 Processes of Evolution Forces of Evolution Concept 15.4 Selection Can Be Stabilizing, Directional, or Disruptive Natural selection can act on quantitative traits in three ways: Stabilizing selection
More informationBig Idea #1: The process of evolution drives the diversity and unity of life
BIG IDEA! Big Idea #1: The process of evolution drives the diversity and unity of life Key Terms for this section: emigration phenotype adaptation evolution phylogenetic tree adaptive radiation fertility
More informationEnduring Understanding: Change in the genetic makeup of a population over time is evolution Pearson Education, Inc.
Enduring Understanding: Change in the genetic makeup of a population over time is evolution. Objective: You will be able to identify the key concepts of evolution theory Do Now: Read the enduring understanding
More informationThe theory of evolution continues to be refined as scientists learn new information.
Section 3: The theory of evolution continues to be refined as scientists learn new information. K What I Know W What I Want to Find Out L What I Learned Essential Questions What are the conditions of the
More informationWarm Up. Explain how a mutation can be detrimental in one environmental context and beneficial in another.
Warm Up Explain how a mutation can be detrimental in one environmental context and beneficial in another. Last Picture 4B Evidence for Evolution 1A.4a: Scientific evidence of biological evolution uses
More informationGenetics and Natural Selection
Genetics and Natural Selection Darwin did not have an understanding of the mechanisms of inheritance and thus did not understand how natural selection would alter the patterns of inheritance in a population.
More informationPopulation Genetics & Evolution
The Theory of Evolution Mechanisms of Evolution Notes Pt. 4 Population Genetics & Evolution IMPORTANT TO REMEMBER: Populations, not individuals, evolve. Population = a group of individuals of the same
More informationChapter 17: Population Genetics and Speciation
Chapter 17: Population Genetics and Speciation Section 1: Genetic Variation Population Genetics: Normal Distribution: a line graph showing the general trends in a set of data of which most values are near
More informationConceptually, we define species as evolutionary units :
Bio 1M: Speciation 1 How are species defined? S24.1 (2ndEd S26.1) Conceptually, we define species as evolutionary units : Individuals within a species are evolving together Individuals of different species
More informationBiology 213 Summer 2004 Midterm III Choose the most correct answer and mark it on the scantron sheet. (2 pts each)
Biology 213 Summer 2004 Midterm III Choose the most correct answer and mark it on the scantron sheet. (2 pts each) 1. Evolution is a. a change in allele frequency in a population b. occurred in the past
More informationEvolution AP Biology
Darwin s Theory of Evolution How do biologists use evolutionary theory to develop better flu vaccines? Theory: Evolutionary Theory: Why do we need to understand the Theory of Evolution? Charles Darwin:
More informationChapter 22: Descent with Modification: A Darwinian View of Life
Chapter 22: Descent with Modification Name Period Chapter 22: Descent with Modification: A Darwinian View of Life As you study this chapter, read several paragraphs at a time to catch the flow of ideas
More informationA. Incorrect! Form is a characteristic used in the morphological species concept.
CLEP Biology - Problem Drill 23: Evolutionary Processes No. 1 of 10 The biological-species concept is based on. (A) Form. (B) Similar size. (C) Similar appearance to all other individuals in the population.
More informationEVOLUTION. Evolution - changes in allele frequency in populations over generations.
EVOLUTION Evolution - changes in allele frequency in populations over generations. Sources of genetic variation: genetic recombination by sexual reproduction (produces new combinations of genes) mutation
More informationChapter 16. Table of Contents. Section 1 Genetic Equilibrium. Section 2 Disruption of Genetic Equilibrium. Section 3 Formation of Species
Population Genetics and Speciation Table of Contents Section 1 Genetic Equilibrium Section 2 Disruption of Genetic Equilibrium Section 3 Formation of Species Section 1 Genetic Equilibrium Objectives Identify
More informationNOTES CH 17 Evolution of. Populations
NOTES CH 17 Evolution of Vocabulary Fitness Genetic Drift Punctuated Equilibrium Gene flow Adaptive radiation Divergent evolution Convergent evolution Gradualism Populations 17.1 Genes & Variation Darwin
More informationGene Pool The combined genetic material for all the members of a population. (all the genes in a population)
POPULATION GENETICS NOTES Gene Pool The combined genetic material for all the members of a population. (all the genes in a population) Allele Frequency The number of times a specific allele occurs in a
More information1.A- Natural Selection
1.A- Natural Selection Big Idea 1: The process of evolution drives the diversity and unity of life. EU 1.A- Evolution is change in the genetic makeup of a population over time. EU 1.B- Organisms are linked
More informationGene Pool Genetic Drift Geographic Isolation Fitness Hardy-Weinberg Equilibrium Natural Selection
CONCEPT 1 EVOLUTION 1. Natural Selection a. Major mechanism of change over time Darwin s theory of evolution b. There is variation among phenotypes genetic mutations play a role in increasing variation
More informationEVOLUTION UNIT. 3. Unlike his predecessors, Darwin proposed a mechanism by which evolution could occur called.
EVOLUTION UNIT Name Read Chapters 1.3, 20, 21, 22, 24.1 and 35.9 and complete the following. Chapter 1.3 Review from The Science of Biology 1. Discuss the influences, experiences and observations that
More informationProcesses of Evolution
Processes of Evolution Microevolution Processes of Microevolution How Species Arise Macroevolution Microevolution Population: localized group of individuals belonging to the same species with the potential
More informationReproduction and Evolution Practice Exam
Reproduction and Evolution Practice Exam Topics: Genetic concepts from the lecture notes including; o Mitosis and Meiosis, Homologous Chromosomes, Haploid vs Diploid cells Reproductive Strategies Heaviest
More informationReproduction- passing genetic information to the next generation
166 166 Essential Question: How has biological evolution led to the diversity of life? B-5 Natural Selection Traits that make an organism more or less likely to survive in an environment and reproduce
More informationSince we re not going to have review this week either
Since we re not going to have review this week either I am posting these slides to help with reviewing the material that we didn t cover during discussion sessions these past two weeks. Of course, take
More informationUnit 7: Evolution Guided Reading Questions (80 pts total)
AP Biology Biology, Campbell and Reece, 10th Edition Adapted from chapter reading guides originally created by Lynn Miriello Name: Unit 7: Evolution Guided Reading Questions (80 pts total) Chapter 22 Descent
More informationLife Cycles, Meiosis and Genetic Variability24/02/2015 2:26 PM
Life Cycles, Meiosis and Genetic Variability iclicker: 1. A chromosome just before mitosis contains two double stranded DNA molecules. 2. This replicated chromosome contains DNA from only one of your parents
More informationMicroevolution Changing Allele Frequencies
Microevolution Changing Allele Frequencies Evolution Evolution is defined as a change in the inherited characteristics of biological populations over successive generations. Microevolution involves the
More informationJeopardy. Evolution Q $100 Q $100 Q $100 Q $100 Q $100 Q $200 Q $200 Q $200 Q $200 Q $200 Q $300 Q $300 Q $300 Q $300 Q $300
Jeopardy Mutations Crosses & Punnett Sqs. Meiosis & Variability Evolution Photo, Cell Resp, Energy, Matter Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $100 Q $100 Q $100 Q $200 Q $200 Q $200 Q $200 Q $300
More informationNatural Selection results in increase in one (or more) genotypes relative to other genotypes.
Natural Selection results in increase in one (or more) genotypes relative to other genotypes. Fitness - The fitness of a genotype is the average per capita lifetime contribution of individuals of that
More informationChapter 22: Descent with Modification 1. BRIEFLY summarize the main points that Darwin made in The Origin of Species.
AP Biology Chapter Packet 7- Evolution Name Chapter 22: Descent with Modification 1. BRIEFLY summarize the main points that Darwin made in The Origin of Species. 2. Define the following terms: a. Natural
More information14. A small change in gene frequencies to a population overtime is called a. Macroevolution b. Speciation c. Microevolution d.
Section: Evolution Review Questions Section Title: Evolution Review Questions Name: Review of Old Information: Match the people listed below with the influential ideas they proposed: 1. Carolus Linneus
More informationoverproduction variation adaptation Natural Selection speciation adaptation Natural Selection speciation
Evolution Evolution Chapters 22-25 Changes in populations, species, or groups of species. Variances of the frequency of heritable traits that appear from one generation to the next. 2 Areas of Evolutionary
More informationTheory a well supported testable explanation of phenomenon occurring in the natural world.
Evolution Theory of Evolution Theory a well supported testable explanation of phenomenon occurring in the natural world. Evolution the process by which modern organisms changed over time from ancient common
More informationDarwin s Observations & Conclusions The Struggle for Existence
Darwin s Observations & Conclusions The Struggle for Existence 1 Voyage of the Beagle During His Travels, Darwin Made Numerous Observations And Collected Evidence That Led Him To Propose A Revolutionary
More informationAP Biology Review Packet 5- Natural Selection and Evolution & Speciation and Phylogeny
AP Biology Review Packet 5- Natural Selection and Evolution & Speciation and Phylogeny 1A1- Natural selection is a major mechanism of evolution. 1A2: Natural selection acts on phenotypic variations in
More informationList the five conditions that can disturb genetic equilibrium in a population.(10)
List the five conditions that can disturb genetic equilibrium in a population.(10) The five conditions are non-random mating, small population size, immigration or emigration, mutations, and natural selection.
More informationChapter 15 Evolution
Section 1: Darwin s Theory of Natural Selection Section 2: Evidence of Section 3: Shaping ary Theory Click on a lesson name to select. 15.1 Darwin s Theory of Natural Selection Darwin on the HMS Beagle
More informationChapter 16: Evolutionary Theory
Chapter 16: Evolutionary Theory Section 1: Developing a Theory Evolution: Artificial Selection: Evolution: I. A Theory to Explain Change Over Time B. Charles Darwin C. Theory: D. Modern evolutionary theory
More informationUnit 9: Evolution Guided Reading Questions (80 pts total)
Name: AP Biology Biology, Campbell and Reece, 7th Edition Adapted from chapter reading guides originally created by Lynn Miriello Unit 9: Evolution Guided Reading Questions (80 pts total) Chapter 22 Descent
More informationConcepts of Evolution
Concepts of Evolution Isn t Evolution Just A Theory? How does the scientific meaning of a term like theory differ from the way it is used in everyday life? Can the facts of science change over time? If
More informationSpeciation. Today s OUTLINE: Mechanisms of Speciation. Mechanisms of Speciation. Geographic Models of speciation. (1) Mechanisms of Speciation
Speciation Today s OUTLINE: (1) Geographic Mechanisms of Speciation (What circumstances lead to the formation of new species?) (2) Species Concepts (How are Species Defined?) Mechanisms of Speciation Last
More informationStudy of similarities and differences in body plans of major groups Puzzling patterns:
Processes of Evolution Evolutionary Theories Widely used to interpret the past and present, and even to predict the future Reveal connections between the geological record, fossil record, and organismal
More informationVocab. ! Evolution - change in a kind of organism over time; process by which modern organisms have descended from ancient organisms
Vocab! Evolution - change in a kind of organism over time; process by which modern organisms have descended from ancient organisms! Theory - well-tested explanation that unifies a broad range of observations
More information5/31/2012. Speciation and macroevolution - Chapter
Speciation and macroevolution - Chapter Objectives: - Review meiosis -Species -Repro. Isolating mechanisms - Speciation -Is evolution always slow -Extinction How Are Populations, Genes, And Evolution Related?
More informationEvolution of Populations. Chapter 17
Evolution of Populations Chapter 17 17.1 Genes and Variation i. Introduction: Remember from previous units. Genes- Units of Heredity Variation- Genetic differences among individuals in a population. New
More informationMajor questions of evolutionary genetics. Experimental tools of evolutionary genetics. Theoretical population genetics.
Evolutionary Genetics (for Encyclopedia of Biodiversity) Sergey Gavrilets Departments of Ecology and Evolutionary Biology and Mathematics, University of Tennessee, Knoxville, TN 37996-6 USA Evolutionary
More informationREVIEW 6: EVOLUTION. 1. Define evolution: Was not the first to think of evolution, but he did figure out how it works (mostly).
Name: REVIEW 6: EVOLUTION 1. Define evolution: 2. Modern Theory of Evolution: a. Charles Darwin: Was not the first to think of evolution, but he did figure out how it works (mostly). However, Darwin didn
More informationEvaluate evidence provided by data from many scientific disciplines to support biological evolution. [LO 1.9, SP 5.3]
Learning Objectives Evaluate evidence provided by data from many scientific disciplines to support biological evolution. [LO 1.9, SP 5.3] Refine evidence based on data from many scientific disciplines
More informationBiological Change Over Time. Lecture 12: Evolution. Microevolution. Microevolutionary Processes. Genotypes, Phenotypes and Environmental Effects
Lecture 12: Evolution Biological Change Over Time Key terms: Reading: Ch16: Microevolution Ch17:Speciation Ch18:Macroevolution Microevolution Changes with in species Well defined mechanism Easily observed
More informationThe Origin of New Species
The Origin of New Species Introduction If microevolution is small changes in gene frequencies What, then would macroevolution be? And how might that work???? The biological species concept emphasizes reproductive
More informationHow did it all begin?
You Never Know! How did it all begin? Darwin's Theory of Natural Selection. Fact #1 - Without constraints, populations will grow exponentially, producing an ever more rapidly growing number of organisms.
More informationAP Biology Notes Outline Enduring Understanding 1.C. Big Idea 1: The process of evolution drives the diversity and unity of life.
AP Biology Notes Outline Enduring Understanding 1.C Big Idea 1: The process of evolution drives the diversity and unity of life. Enduring Understanding 1.C: Life continues to evolve within a changing environment.
More information1. T/F: Genetic variation leads to evolution. 2. What is genetic equilibrium? 3. What is speciation? How does it occur?
1. T/F: Genetic variation leads to evolution. 2. What is genetic equilibrium? 3. What is speciation? How does it occur? Warm UP Notes on Environmental Factor Concept Map Brief 6 questions and Concept Map
More informationSpeciation. Today s OUTLINE: Mechanisms of Speciation. Mechanisms of Speciation. Geographic Models of speciation. (1) Mechanisms of Speciation
Speciation Today s OUTLINE: (1) Geographic Mechanisms of Speciation (What circumstances lead to the formation of new species?) (2) Species Concepts (How are Species Defined?) Mechanisms of Speciation Last
More informationMicroevolution (Ch 16) Test Bank
Microevolution (Ch 16) Test Bank Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Which of the following statements describes what all members
More informationEvolutionary Patterns, Rates, and Trends
Evolutionary Patterns, Rates, and Trends Macroevolution Major patterns and trends among lineages Rates of change in geologic time Comparative Morphology Comparing body forms and structures of major lineages
More informationSpeciation. Today s OUTLINE: Mechanisms of Speciation. Mechanisms of Speciation. Geographic Models of speciation. (1) Mechanisms of Speciation
Speciation Today s OUTLINE: (1) Geographic Mechanisms of Speciation (What circumstances lead to the formation of new species?) (2) Species Concepts (How are Species Defined?) Mechanisms of Speciation Last
More informationSpeciation and Patterns of Evolution
Speciation and Patterns of Evolution What is a species? Biologically, a species is defined as members of a population that can interbreed under natural conditions Different species are considered reproductively
More informationName: Period Study Guide 17-1 and 17-2
Name: Period Study Guide 17-1 and 17-2 17-1 The Fossil Record (pgs. 417-422) 1. What is the fossil record? 2. What evidence does the fossil record provide? 1. 2. 3. List the 2 techniques paleontologists
More information1.1: Natural selection is a major mechanism of evolution 1. NATURAL SELECTION
Domain 1: Evolution 1.1: Natural selection is a major mechanism of evolution 1. NATURAL SELECTION Charles Darwin Pre-Darwin Lyell: Geology, Uniformitarianism! very old earth. Malthus: Exponential Population
More informationEvolution Test Review
Name Evolution Test Review Period 1) A group of interbreeding organisms (a species) living in a given area is called population 2) Give an example of a species. Ex. One wolf Give an example of a population.
More informationEvolution of Populations
Evolution of Populations Gene Pools 1. All of the genes in a population - Contains 2 or more alleles (forms of a gene) for each trait 2. Relative frequencies - # of times an allele occurs in a gene pool
More informationEvolution. Species Changing over time
Evolution Species Changing over time Charles Darwin Evolution by Means of Natural Selection Reasons for Change Mutation A mutation could cause parents with genes for bright green coloration to have offspring
More informationBiology 20 Evolution
Biology 20 Evolution Evolution: Modern synthesis: Individuals: Lamarck: Use and disuse: Inheritance of Acquired Traits: Darwin: Travelled: Galapagos Islands: What was the name of Darwin s book, which he
More informationMechanisms of Evolution
Mechanisms of Evolution 36-149 The Tree of Life Christopher R. Genovese Department of Statistics 132H Baker Hall x8-7836 http://www.stat.cmu.edu/ ~ genovese/. Plan 1. Two More Generations 2. The Hardy-Weinberg
More informationBig Idea 1: The process of evolution drives the diversity and unity of life.
Big Idea 1: The process of evolution drives the diversity and unity of life. understanding 1.A: Change in the genetic makeup of a population over time is evolution. 1.A.1: Natural selection is a major
More informationCH 16: Evolution of Population
CH 16: Evolution of Population 16.1 Genes and Variation A. Introduction 1. Darwin s theory of evolution by natural selection explained how 2. What Darwin did not know was how were passed down through each
More informationAP Curriculum Framework with Learning Objectives
Big Ideas Big Idea 1: The process of evolution drives the diversity and unity of life. AP Curriculum Framework with Learning Objectives Understanding 1.A: Change in the genetic makeup of a population over
More informationEvolution. Part 1: Historical Perspective on the Theory of Natural Selection
Evolution Part 1: Historical Perspective on the Theory of Natural Selection 1. In the 1860 s, what types of evidence were available to indicate that evolution had occurred on Earth? 2. How did knowledge
More informationSlide 1. Slide 2. Slide 3. Concepts of Evolution. Isn t Evolution Just A Theory? Evolution
Slide 1 Concepts of Evolution Slide 2 Isn t Evolution Just A Theory? How does the scientific meaning of a term like theory differ from the way it is used in everyday life? Can the facts of science change
More informationmrna Codon Table Mutant Dinosaur Name: Period:
Mutant Dinosaur Name: Period: Intro Your dinosaur is born with a new genetic mutation. Your job is to map out the genes that are influenced by the mutation and to discover how the new dinosaurs interact
More informatione.g. population: 500, two alleles: Red (R) and White (r). Total: 1000 genes for flower color in the population
The Evolution of Populations What is Evolution? A change over time in the genetic composition of a population Human evolution The gene pool Is the total aggregate of genes for a particular trait in a population
More informationTopic outline: Review: evolution and natural selection. Evolution 1. Geologic processes 2. Climate change 3. Catastrophes. Niche.
Topic outline: Review: evolution and natural selection Evolution 1. Geologic processes 2. Climate change 3. Catastrophes Niche Speciation Extinction Biodiversity Genetic engineering http://www.cengage.com/cgi-wadsworth/course_products_wp.pl?fid=m20b&product_isbn_issn=9780495015987&discipline_number=22
More informationEVOLUTION change in populations over time
EVOLUTION change in populations over time HISTORY ideas that shaped the current theory James Hutton (1785) proposes that Earth is shaped by geological forces that took place over extremely long periods
More informationSTUDY GUIDE SECTION 16-1 Genetic Equilibrium
STUDY GUIDE SECTION 16-1 Genetic Equilibrium Name Period Date Multiple Choice-Write the correct letter in the blank. 1. The smallest unit in which evolution occurs is a. an individual organism. c. a species
More informationStation 1. What is Evolution? What causes Evolution? A primary example of Evolution, is different bird beak sizes. What caused this to occur?
Station 1 What is Evolution? What causes Evolution? A primary example of Evolution, is different bird beak sizes. What caused this to occur? Station 2 What is Survival of the Fittest? How is fitness measured?
More informationEvolution. Species Changing over time
Evolution Species Changing over time Objectives I can differentiate between natural selection and artificial selection and I can give examples of each. I can explain several reasons for genetic variation
More informationEvolution PCB4674 Midterm exam2 Mar
Evolution PCB4674 Midterm exam2 Mar 22 2005 Name: ID: For each multiple choice question select the single est answer. Answer questions 1 to 20 on your scantron sheet. Answer the remaining questions in
More informationEVOLUTION. HISTORY: Ideas that shaped the current evolutionary theory. Evolution change in populations over time.
EVOLUTION HISTORY: Ideas that shaped the current evolutionary theory. Evolution change in populations over time. James Hutton & Charles Lyell proposes that Earth is shaped by geological forces that took
More information5/31/17. Week 10; Monday MEMORIAL DAY NO CLASS. Page 88
Week 10; Monday MEMORIAL DAY NO CLASS Page 88 Week 10; Wednesday Announcements: Family ID final in lab Today Final exam next Tuesday at 8:30 am here Lecture: Species concepts & Speciation. What are species?
More informationThe Origin of Species
Chapter 24 The Origin of Species PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp
More informationEvolution and Natural Selection (16-18)
Evolution and Natural Selection (16-18) 3 Key Observations of Life: 1) Shared Characteristics of Life (Unity) 2) Rich Diversity of Life 3) Organisms are Adapted to their Environment These observations
More informationEvolution. Changes over Time
Evolution Changes over Time TEKS Students will analyze and evaluate B. 7 C how natural selection produces change in populations, not individuals B. 7 E/F effects of genetic mechanisms and their relationship
More informationAP Biology Concepts and Connections. Reading Guide. Your Name: ! Chapter 13 How Populations Evolve. Key Terms
AP Biology Concepts and Connections Chapter 13 How Populations Evolve Reading Guide Key Terms adaptation fossils microevolution artificial selection founder effect molecular biology balancing selection
More informationChapter 15 Evolution Darwin s Theory of Natural Selection 15.2 Evidence of Evolution 15.3 Shaping Evolutionary Theory
Chapter 15 Evolution 15.1 Darwin s Theory of Natural Selection 15.2 Evidence of Evolution 15.3 Shaping Evolutionary Theory 15.1 Darwin s Theory of Natural Selection Main idea: Charles Darwin developed
More informationAnthro 101: Human Biological Evolution. Lecture 6: Macroevolution & Speciation. Prof. Kenneth Feldmeier feldmekj.weebly.com
Anthro 101: Human Biological Evolution Lecture 6: Macroevolution & Speciation Prof. Kenneth Feldmeier feldmekj.weebly.com Reminders Exam next class Taxonomy Project Wednesday homework on the website 2
More informationgenome a specific characteristic that varies from one individual to another gene the passing of traits from one generation to the next
genetics the study of heredity heredity sequence of DNA that codes for a protein and thus determines a trait genome a specific characteristic that varies from one individual to another gene trait the passing
More informationEvolution by Natural Selection. Though it is considered a theory, there are few facts more widely accepted in all of science!
Evolution by Natural Selection Though it is considered a theory, there are few facts more widely accepted in all of science! Charles Darwin & Alfred Russel Wallace Charles Darwin is often called the father
More informationEvolution. Early Beliefs
Early Beliefs Evolution Chain of Beings- Life extended from lowest forms to humans, spiritual beings were highest. Single Creation- All species were links created at the same time at one center of creation.
More informationEnduring understanding 1.A: Change in the genetic makeup of a population over time is evolution.
The AP Biology course is designed to enable you to develop advanced inquiry and reasoning skills, such as designing a plan for collecting data, analyzing data, applying mathematical routines, and connecting
More informationAP Biology Evolution Review Slides
AP Biology Evolution Review Slides How would one go about studying the evolution of a tetrapod limb from a fish s fin? Compare limb/fin structure of existing related species of fish to tetrapods Figure
More informationSPECIATION. REPRODUCTIVE BARRIERS PREZYGOTIC: Barriers that prevent fertilization. Habitat isolation Populations can t get together
SPECIATION Origin of new species=speciation -Process by which one species splits into two or more species, accounts for both the unity and diversity of life SPECIES BIOLOGICAL CONCEPT Population or groups
More informationMicroevolution 2 mutation & migration
Microevolution 2 mutation & migration Assumptions of Hardy-Weinberg equilibrium 1. Mating is random 2. Population size is infinite (i.e., no genetic drift) 3. No migration 4. No mutation 5. No selection
More informationwww.lessonplansinc.com Topic: Dinosaur Evolution Project Summary: Students pretend to evolve two dinosaurs using genetics and watch how the dinosaurs adapt to an environmental change. This is a very comprehensive
More informationEVOLUTION change in populations over time
EVOLUTION change in populations over time HISTORY ideas that shaped the current theory James Hutton & Charles Lyell proposes that Earth is shaped by geological forces that took place over extremely long
More informationChapter 2 Section 1 discussed the effect of the environment on the phenotype of individuals light, population ratio, type of soil, temperature )
Chapter 2 Section 1 discussed the effect of the environment on the phenotype of individuals light, population ratio, type of soil, temperature ) Chapter 2 Section 2: how traits are passed from the parents
More information1 Errors in mitosis and meiosis can result in chromosomal abnormalities.
Slide 1 / 21 1 Errors in mitosis and meiosis can result in chromosomal abnormalities. a. Identify and describe a common chromosomal mutation. Slide 2 / 21 Errors in mitosis and meiosis can result in chromosomal
More informationAP Biology TEST #5 Chapters REVIEW SHEET
AP Biology TEST #5 Chapters 21 25 REVIEW SHEET 1. The half-life of an isotope is best defined as the A) time a fixed fraction of isotope material will take to change from one form to another. B) age over
More informationThe Origin of Species
The Origin of Species Introduction A species can be defined as a group of organisms whose members can breed and produce fertile offspring, but who do not produce fertile offspring with members of other
More information