AP BIOLOGY

Detailed explanation-1: -Answer and Explanation: The correct answer is C. The lowercase letter q represents the frequency of the recessive allele, and the lowercase p represents the frequency of the dominant allele.

Detailed explanation-2: -p = the frequency of the dominant allele in a population. q = the frequency of the recessive allele in a population.

Detailed explanation-3: -The frequency of alleles in a population can be represented by p + q = 1, with p equal to the frequency of the dominant allele and q equal to the frequency of the recessive allele.

Detailed explanation-4: -p = frequency of the dominant allele in the population. q = frequency of the recessive allele in the population. p2 = percentage of homozygous dominant individuals. q2 = percentage of homozygous recessive individuals. 2pq = percentage of heterozygous individuals.

Detailed explanation-5: -In the simplest system, with two alleles of the same locus (e.g. A, a), we use the symbol p to represent the frequency of the dominant allele within the population, and q for the frequency of the recessive allele.