Question

1. Relate Cause and Effect How does crossing-over increase variation in genes?

2. Use Models Suppose no crossing-over takes place. Use Step 5 to explain why meiosis will still increase genetic variation.

3. Compare and Contrast Compare your models of the four haploid cells with those of other groups. Describe and explain any variation that you observe.

4. Calculate What would happen to the possible variation in gametes if the number of chromosome pairs increased from two to three? What if the number increased again from three to four?

Answer 1

5. Apply Concepts How can independent assortment help explain genetic diversity in humans? Hint: How many pairs of chromosomes are in a human diploid cell?

6. Perform Error Analysis Suggest a way you could improve the models to better represent the process of meiosis.

7. Draw Conclusions In terms of adaptation, what advantage does sexual reproduction provide for a species?

Anything you can tell me will help

Answer 2

First, what do you know about variations and mutation?

Answer 3

well nothing about varitations but i know muatations is a change of the nucleotide sequence of the genome of an organism.

Answer 4

I know it is a lot of questions but i really need help on them so anybody who can give a little info please do

Answer 5

you have pictures?

Answer 6

no i dont

Answer 7

this might actually help you with first questions

Answer 8

http://www.youtube.com/watch?v=5x_Rp1mwotQ