1. Illustrate the inheritance of the sickle-cell disease. Comprise the terms genotype, homozygous, phenotype, heterozygous, dominant, and recessive in your description.
2. Illustrate the inheritance of colour blindness, and discuss why colour blindness is much more common in men than women.
3. A man with the normal blood clotting marries a woman who is carrier for hemophilia, a sex-linked trait. What is the probability that their first child will have hemophilia? If this child is hemophilic, what is its sex? What is probability that this couple's next child will have hemophilia? Discuss