Question

Rium 2. Explain what deviations from Hardy-Weinberg equilibrio tell us about a population.

Answer 1

There are several factors behind the deviation from Hardy Weinberg Principle.

Explanation:

Hardy Weinberg tells us that the total frequency of the homozygotes and heterozygotes in a population is 1.

$p^2 + 2pq +q^2 = 1$

There are several causes of deviation to this principle. Some of them are:

A. Small population size - when the hardy weinberg principle is applied to a smaller population, the error becomes more in percentage, which seems to be a deviation from a population.

B. Bottleneck effect - any disease, disaster, habitat loss etc are responsible for the severe decrease in population which results in the deviation from Hardy Weinberg Principle.

C. Migration or immigration - migration of a huge part of population, or immigration of new genes from outside the population causes deviation from Hardy Weinberg Principle.

D. Evolution and mutation - both of these features cause the deviation.