Admit Ticket. Take notes on Gregor Mendel: Great Minds watch? v=gtioetazg4w

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2 Admit Ticket Take notes on Gregor Mendel: Great Minds watch? v=gtioetazg4w

3 DUE TODAY CLASSWORK: Cell Processes and Microscope Quiz Agenda Item

4 DUE TODAY CLASSWORK: Textbook Guided Reading and Study Worksheet on Mendel s Work Pg (Binder) Agenda Item

5 DUE 2/3/17 CLASSWORK: Punnet Square Exercises (Binder) CLASSWORK: Bikini Bottom Genetics (TURN IN) Agenda Item

6 Friday 2/3/17 *2ND HOUR ONLY* GUEST SPEAKER

7 DUE 2/6/17 HOMEWORK: Student Weekly Grade Tracking #23 Agenda Item

8 DUE 2/6/17 CLASSWORK: OPEN BINDER/ NOTE TEST #3 Agenda Item

9 Cell History and Function Quiz Review

10 Exit Ticket WOR KS (BIN Textbook Guided Reading and Study worksheet on Mendel s Work Page (BINDER) HEE DER ) T

11 Cell Processes and Microscope Quiz

12 Photosynthesis watch?v=2kfbe6y7as

13 Introduction to Photosynthesis watch?v=eaacsexajha

14 Cell Energy (Photosynthesis and Respiration) Notes Energy: Energy for living things comes from food. Originally, the energy in food comes from the sun.

15 Organisms that use light energy from the sun to produce food autotrophs (auto = self) Ex: plants and some microorganisms (some bacteria and protists)

16 Organisms that CANNOT use the sun s energy to make food heterotrophs Ex: animals and most microorganisms

17 Photosynthesis: Photosynthesis is the process by which the energy of sunlight is converted into the energy of glucose

18 Photosynthesis occurs in the chloroplasts of plants

19 Light absorbing compound is a pigment pigments absorb some wavelengths of light and reflect others the color our eyes see is the color that the pigment reflects

20 Chlorophyll is the pigment inside the chloroplast the absorbs light for photosynthesis As the chlorophyll in leaves decays in the autumn, the green color fades and is replaced by the oranges and reds of carotenoids.

21 Respiration watch? v=8b_64g2si_8

22 Respiration occurs in ALL cells and can take place either with or without oxygen present.

23 Respiration watch? v=vjeydfyr9ti

24 Mendelian Genetics watch?v=cwt1rfnwnzk

25 Gregor Mendel ( ) The Father of Genetics copyright cmassengale Fall 2005, Pflugerville ISD, 7th Grade 25

26 Austrian monk Studied the inheritance of traits in pea plants Developed the laws of inheritance Mendel's work was not recognized until the turn of the 20th century Gregor Johann Mendel Fall 2005, Pflugerville ISD, 7th Grade 26

27 Between 1856 and 1863, Mendel cultivated and tested thousands of pea plants He found that the plants' offspring retained traits of the parents Gregor Johann Mendel Fall 2005, Pflugerville ISD, 7th Grade copyright cmassengale 27

28 Particulate Inheritance Mendel stated that physical traits are inherited as particles Mendel did not know that the particles were actually Chromosomes & DNA copyright cmassengale Fall 2005, Pflugerville ISD, 7th Grade 28

29 Why peas, Pisum sativum? Can be grown in a small area Produce lots of offspring Produce pure plants when allowed to selfpollinate several generations Can be artificially cross-pollinated Fall 2005, Pflugerville ISD, 7th Grade copyright cmassengale 29

30 Mendel and His Peas Mendel tested 7 traits: 1. Flower color 2. Flower position 3. Seed color 4. Seed shape 5. Pod shape 6. Pod color 7. Plant height Fall 2005, Pflugerville ISD, 7th Grade

31 Mendel and His Peas Mendel crossed flowers that were truebreeding for each characteristic. He crossed a purple (PP) flowered plant with a white (pp) flowered plant. (Parent Generation) Fall 2005, Pflugerville ISD, 7th Grade

32 Mendel and His Peas The first generation (F1) of plants all had purple flowers. Purple Parent (PP) (Pp) (Pp) Where did the white color go?? (Pp) (Pp) Fall 2005, Pflugerville ISD, 7th Grade

33 Mendel and His Peas Mendel took two of his first generation (F1 x F1) purple flowered plants and crossed them together. In the second generation (F2) he had 3 purple flowered plants, and 1 white flowered plant. Fall 2005, Pflugerville ISD, 7th Grade Purple Parent (Pp) (PP) (Pp) (Pp) (pp)

34 Mendel and His Peas Mendel noticed in the first generation, all of the white flowers seemed to disappear. He called this a recessive trait. The white color faded into the background at first. It showed up in the next generation when he pollinated the flowers. Fall 2005, Pflugerville ISD, 7th Grade

35 Mendel and His Peas The color (purple) that seemed to mask over the recessive color was named the dominant trait. Fall 2005, Pflugerville ISD, 7th Grade

36 Mendel and His Peas Mendel was responsible for figuring out that each plant carried two sets of instructions for each characteristic (one from the mom and one from the dad ). Like many scientists, his work was not accepted until after his death. Fall 2005, Pflugerville ISD, 7th Grade

37 Let s Review 1. If you crossed a true-breeding black rabbit with a true-breeding white rabbit, all of the offspring would be black. Which trait is dominant in rabbits: black fur or white fur? 2. Which trait is recessive? Fall 2005, Pflugerville ISD, 7th Grade

38 Answer The trait for black fur is dominant over the trait for white fur. The white fur trait is recessive. Black Rabbit (BB) (Bb) (Bb) Fall 2005, Pflugerville ISD, 7th Grade (Bb) (Bb)

39 Fall 2005, Pflugerville ISD, 7th Grade Google s tribute to Mendel July 2011

40 Fall 2005, Pflugerville ISD, 7th Grade Science Humor

41 Mendel and His Peas Vocabulary 1. Heredity- the passing of traits from parent to offspring. 2. Self-pollinate- A plant is often able to pollinate by itself because it contains both the male and female reproductive structures. This only requires 1 parent. Fall 2005, Pflugerville ISD, 7th Grade

42 Mendel and His Peas 3. True-breeding- all of the offspring will have the same trait as the parent when self-pollinated 4. First-generation- the very first set of offspring from two parents 5. Dominant trait- the trait observed when at least one dominant allele for a characteristic is inherited Fall 2005, Pflugerville ISD, 7th Grade

43 Mendel and His Peas 6. Recessive trait- a trait that is apparent only when two recessive alleles for the same characteristic are inherited 7. Genes- a segment of DNA that carries hereditary instructions and is passed from parent to offspring 8. Alleles- multiple forms of the same gene Fall 2005, Pflugerville ISD, 7th Grade

44 Mendel and His Peas 9. Genotype- an organisms inherited combination of alleles 10. Phenotype- an organisms inherited appearance Fall 2005, Pflugerville ISD, 7th Grade

45 HAVE A WONDERFUL DAY!