Cite your references at the end of each essay.

1. There are reported cases of husbands abandoning wives because of the skin color of a new infant. In some cases, the couple with dark complexions produced an infant with a very light complexion. Assuming no infidelity, as a mediator, how would you explain this to the disturbed husband? Your response should include the words gene, polygenic, trait, generation, and genotype.

2. You are a genetic counselor. You are presented with a couple who were just informed that they are carriers of the sickle cell trait. You must tell them their chances of having a baby born with sickle cell disease. Use a Punnett square. What will you tell them? You must show your square in your response. Use the terms dominant, recessive, probability, trait, genotype, and phenotype in your response.

3. What is epigenetics? Discuss a specific example.

4. Review the process of meiosis. Choose two specific diseases that occur when meiosis goes wrong and explain how and why these occur.