1. In Drosophila again, a red-eyed heterozygous femaleis mated with a red-eyed male.
A) What are the phenotypes of their male offspring?
B) What is the expected ratio of those phenotypes (in theirsons)?
2. A man and woman plan to have children. The woman is ahemophiliac (she suffers from hemophilia, which is an X-linkeddisorder), but the man is not a hemophiliac.
A) What are the chances that their sons will behemophiliacs?
B) What are the chances that their daughters will behemophiliacs?
C) What are the chances that their daughters will be carriers ofhemophilia?
3. A married woman gives birth to a color-blind daughter. Sheand her husband have normal color vision. The husband happens to bea genetics student. Despite the fact that individuals with colorblindness live perfectly normal lives, he is very upset bythis revelation. Why? Explain your reasoning.
