AP BIOLOGY

Detailed explanation-1: -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-2: -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.

Detailed explanation-3: -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-4: -In order to express Hardy Weinberg principle mathematically, suppose “p” represents the frequency of the dominant allele in gene pool and “q” represents the frequency of recessive allele. p+q=1 since the sum of both frequencies is 100% .

Detailed explanation-5: -In this equation, p is the predicted frequency of homozygous dominant (AA) people in a population, 2pq is the predicted frequency of heterozygous (Aa) people, and q is the predicted frequency of homozygous recessive (aa) ones.