In pea plants the purple allele at the flower color locus is

In pea plants, the purple allele at the flower color locus is dominant to the white allele. If a heterozygous purple plant is crossed to a white plant, what is the probability that the first two offspring produced would have white flowers?

n pea plants, the purple allele at the flower colo ocus is dominant to the white allele. If a heterozygous purple plant is crossed to a white plant, what is the probability that the first two offspring produced would have white flowers? O 1/16 1/4 3/4 9/16 O none of the above

Solution

Answer: (b) 1/4

If we cross heterozygous purple (Pp) to white flower (pp), we get the following phenotypes:

Pp (Purple) = 2/4 = 1/2

pp (White) = 2/4 = 1/2

Probability og getting 1 white flower = 1/2

Therefore, probability of getting both white flowers = 1/2 * 1/2 = 1/4