# The Hardy-Weinberg principle is written as the equation p^{2} + 2pq + q^{2} = 1. What does p represent?

**Solution:**

The equation p^{2} + 2pq + q^{2} = 1 is a binomial expression of (p + q)^{2} +1.

p^{2} + 2pq + q^{2} = 1 mathematically represents Hardy-Weinberg's principle used to calculate the genetic variation of a population at equilibrium.

It states that the allele frequencies in a population are stable and remain constant from one generation to another.

p represents the allele A frequency

q represents the allele a frequency

p^{2} represents the frequency of AA individuals in a population

q^{2} represents the frequency aa individuals

2pq represents the frequency of Aa individuals

The Sum of all the allelic frequencies is 1

If the values of p and q are known, the frequencies of the three genotypes can be determined using the Hardy-Weinberg equation.

Therefore, p represents the allele A frequency.

## The Hardy-Weinberg principle is written as the equation p^{2} + 2pq + q^{2} = 1. What does p represent?

**Summary: **

The Hardy-Weinberg principle is written as the equation p^{2} + 2pq + q^{2} = 1 = 1. p represents the allele A frequency.