Question

A species of rose was studied in Florida and was found to have the following distribution in petal color alleles: 70 for the red allele (R) and 30 for the white allele (W). It is known in this species that the three possible petal colors are red, white, and pink because of codominance. Assuming this population is in equilibrium, what percentage of white roses could be expected in the next generation

Answer 1

Answer: C 49%

Explanation:

when a population maintains the Hardy-Weinberg equilibrium, the frequency in the alleles will continue unchanged from one generation to another, thus in the question if "q" is the frequency of the white allele and "p" is the frequency of the red allele, p + q will be equal to 1 in the population

using the following formula, the genotypic frequency can be obtained for the next generation

P ^ 2 + 2pq + q ^ 2 = 1

result: p = 70%, which is equivalent to: - 0.7

P ^ 2 = 0.7 * 0.7 = 0.49 converts to% = 49%