McGraw-Hill Online Learning Center Test

1. Review the image and answer the following questions.

A woman with blood type AB has a child with blood type B. She claims Harry is the child's father, but he denies this. Harry's blood type is O. Could he be the father of this child?

A. No, with blood type O, Harry could not produce a child with type A.
B. Yes, Harry could donate the i allele, which paired with the IA allele of the mother could produce a child with blood type A, although this does not prove Harry is the father.
C. No, the child from these two parents would have AB blood, since A and B are codominant and O is recessive.
D. It is impossible to tell from the information given whether or not Harry could be the father.

2. What do the ABO blood group genes tell us about the number of alleles possible at one gene locus?

A. An individual may have more than two alleles at a locus.
B. Populations and individuals can have an infinite number of alleles at a given locus.
C. There may be more than two alleles at one locus within a population, although an individual can only have two alleles at one locus.
D. All of these are correct.

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