Multiple choice

1. Which one of the following statements would most clearly refer to a person’s genotype?

A. Susan has blue eyes.

B. Bill is recessive for height and dominant for hair color.

C. Karen has broad shoulders, long legs, and green eyes.

D. Harold inherited high cheekbones.

2. In one kind of abnormal chromosome inheritance called Down syndrome, a child has three copies of

A. chromosome X.

B. chromosome 23.

C. chromosome Y.

D. chromosome 21.

3. The process of reproductive cloning begins by

A. genetically modifying an embryo.

B. genetically modifying a stem cell.

C. placing an adult nucleus in a cell without a nucleus.

D. isolating cells to learn more about how they specialize.

4. In humans, blood type inheritance is an example of

A. complete dominance.

B. codominance.

C. incomplete dominance.

D. predominance.