Question

HELP PLEASE!

In pea plants, petal coloration of has a complete dominance relationship where purplepetals are dominant over white petals. There are 276 plants, 273 have purple petals.Find: the frequency of the dominant and recessive alleles and the frequency ofindividuals with the dominant, heterozygous, and recessive genotype.

Answer 1

Answer: See below

Explanation:

In the selected pea plant population, there are total 276 plants out of them 273 have purple petals.

Remaining 276 - 273 = 3

q²= 3/276

q²= 0.010

q = 0.1

p + q = 1

p = 1 - 0.1

p = 0.9

Therefore:

Homo-zygous dominant = p² = 0.9×0.9 = 0.81

Hetero-zygous dominant = 2pq = 2×0.9×0.1 = 0.18

Homo-zygous recessive = q² = 0.1×0.1 = 0.010