Answer the questions in Exercise 37 for the presence versus absence of dimples and for straight hairline versus widow’s peak hairline.

Exercise 37

Trace the inheritance of blood type in your immediate family. What is your blood type? What blood-type alleles do you have? (Note: You may be able to say for sure what alleles you have, or you may have to list multiple possibilities.) What are your parents’ blood types?
What alleles might they have? (Again, you may or may not be able to say for sure. What are the possibilities?)
If you are a heterozygote, can you tell which allele you received from your mother and which allele you received from your father?