A pea plant that is heterozygous for the flower color gene makes gametes. What is the probability that a specific gamete contains the recessive allele for flower color?

Question

A pea plant that is heterozygous for the flower color gene makes gametes. What is the probability that a specific gamete contains the recessive allele for flower color?

Choose one:
A. 25 percent
B. 100 percent
C. 75 percent
D. 50 percent

Answer 1

D. 50 percent

Since the pea plant is heterozygous for the flower color gene, it has two different alleles for that gene. During gamete formation, each allele has an equal chance of being passed on to the gamete. Therefore, the probability of a specific gamete containing the recessive allele for flower color is 50 percent.