Question

(03.06 MC)

Which of the following is true regarding the expression of a chromosomal genetic mutation that is expressed on a recessive allele? (1 point)

a. The mutation will be expressed only in individuals that are heterozygous for the gene.

b. The mutation will be expressed approximately 50 percent of the time.

c. The mutation will be expressed consistently when the mutation occurs on a recessive allele.

d. The mutation will be expressed only if the individual has two copies of the recessive allele.

Answer 1

d. The mutation will be expressed only if the individual has two copies of the recessive allele.