Jan Monday

9

Genetic Variation

Lesson 1:  Human Genetic Variation: Histograms

* Lesson 1 - Genetic Variation:

- Survey, notes, answers

Homework:

1) Compare between two people that you know (you can be one of them), as follows: Divide your page into two columns, for the two people.

a. List at least ten characteristics that are similar, b. List at least ten characteristics that they differ by.

c. On your list, circle all those characteristics that are inherited, genetic.

2) How did you decide if a characteristic is inherited or not?
3) What causes people to be identical in certain inherited traits? 

4) What causes people to be different in many inherited traits?

Due: Wednesday

Tuesday

10

Sexual and a-sexual reproduction,

(Mention haploid, diploid)

Lesson 2.1: Reproduction strategies / life Cycles of different organisms.

* 2.1 Organisms: Chart and analysis (in your notebook)

Wednesday

11

Sexual and a-sexual reproduction: Which is better?

Lesson 2.1-cont.

2.2 Card Simulation: Reproduction Strategies

* 2.2 Simulation: Graphs and analysis

* Homework Read pages 148-150.

Answer:

1. List three advantages and three disadvantages of a-sexual reproduction.

2. Which types of eukaryotic organisms reproduce asexually by mitosis?

3. How does the sea anemone reproduce? Why could this be good for the survival of the organism?

Due: Friday

Thursday

12

Sexual and a-sexual reproduction: Which is better?

Chromosome numbers, Haploid, Diploid

Video: “Why Sex?”

* Videonotes: Why Sex?

Friday

13

Sexual Reproduction and Genetic variation

* Discussion: Why Sex?

* Notes: Chromosomes

* Fitting a yarn DNA in a microcentrifuge tube

* Notes

* Homework: Chromosomes

Read pages 138-139

1) What is the relationship between chromosomes and the following terms:

a. DNA

b. chromatin

c. chromatid

2) DNA can be seen as condense chromosomes only during cell division.

a. Why is DNA more dense during cell division?

b. Why is it not as condense all the time?

Due: Monday

Monday

16

MLK Day

Tuesday

17

Cell Division by Mitosis

Yarn Simulation

* Drawings of Mitosis

* Homework:

Read pages 168-176

Answer:

 Study Guide p.53-54, 55-56

Due: Thursday

http://teacherweb.com/CA/Kennedy/Kreiselman/Study-Guide-pages-53-54-Chromosomes-Meiosis.pdf

Wednesday

18

Cell Division by Mitosis

Yarn Simulation – cont.

Thursday

19

Absent

Video: “Life’s Greatest Miracle”

Friday

20

Meiosis, homologous chromosomes, sister chromatids.

Meiosis – Comparing to Mitosis

Yarn Simulation – Cont.

*Homework: Read pages 189-191. Answer:

1. How many combinations of chromosomes are possible in eggs of an organism if it’s haploid number (n) of chromosomes is 2 (as in the yarn)? Repeat for n=3?

2. What is crossing over? When does it occur?

3. Draw the three stages of crossing over. (Figure 6.20).

4. How does meiosis generate genetic variation? (2 ways).

5. (Extra Credit) How many types of sperm can a single man produce? Show your reasoning.

Due: Tuesday

Monday

23

- Meiosis, recombination / shuffling, crossing over

- Source of variations in reproductive cycle

* Create mini posters of variations

* Sexual reproduction life cycle

* Mitosis vs. Meiosis handout

* Group miniposters

Tuesday

24

Staff

Sexual Reproduction and Genetic variation - conclude

* Quiz

* Quiz

* Notes