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?
a. 25 percent
b. 75 percent
c. 0 percent
d. 50 percent
d. 50 percent
Since the pea plant is heterozygous for the flower color gene (Rr), it has one dominant allele (R) and one recessive allele (r). When making gametes through meiosis, each gamete will randomly receive one of the alleles. Therefore, the probability of a specific gamete containing the recessive allele for flower color is 50 percent.