Consider a population of snapdragons. In this population of size 500, there are

Question

Consider a population of snapdragons. In this population of size 500, there are 75 red flowered individuals, 150 pink flowered individuals and 275 white flowered individuals. You also know that flower color is determined by a single locus with two alleles – A1 produces red pigment while A2 produces white pigment. Note that a mix of red and white pigments makes pink colored flowers. Is this population in Hardy-Weinberg Equilibrium? YOU MUST DEMONSTRATE THIS MATHEMATICALLY (i.e. do not just list yes or no).

Explanation / Answer

Based on the given data,

The genotype of flower color in snapdragons is as follows:

So, based on hardy-weinberg law:

p2 + 2pq + q2 = 1

Thus,

0.15 + 0.3 + 0.55 = 1

So, the population is in hardy-weinberg equilibrium.

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