Cases of husbands abandoning wives because of the skin color of a new infant.

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.

Sample Solution