1. Test Review Part 2 Heredity
B-4 Heredity DUT Review

2. What is the chromosome # in human somatic cells and gametes?

3. What is the chromosomal theory of heredity?

4. How was the Law of independent assortment modified by the chromosomal theory of heredity?

5. On the chromosome below, which 2 genes are most likely to be inherited together.

6. Define sex-linked (x-linked)
Define sex-linked (x-linked). Explain why X-linked traits are more common in males.

7. Explain why the cross below is a good example of codominance.

8. Define polygenic trait. List 2 traits that are polygenic.

9. Explain how the flower below is an example of incomplete dominance.

10. What is a mutagen? If a mutagen affects a somatic cell will the affects be passed to offspring?

11. Genetic Disorders can be caused by Gene Mutations which are passed on: Give an example for each of the following.
Dominant Disorder:
Recessive Disorder:
X-linked Disorder:

12. What is non-disjunction? Name 1 disorder caused by non-disjunction.

13. What type of inheritance is shown in the pedigree. Why
What type of inheritance is shown in the pedigree? Why? (recessive, dominant, sex-linked)

14. Jane and Jake both have the recessive gene mutation of cystic fibrosis
Jane and Jake both have the recessive gene mutation of cystic fibrosis. Their parents are carriers, what does that mean?
Jake
Jane