NEETZoologyEvolution
What does the principle of genetic equilibrium state about allele frequencies in a population?
Options
- AThey fluctuate constantly
- BThey are stable and constant from generation to generation
- CThey always increase over time
- DThey decrease over time
Correct answer
B. They are stable and constant from generation to generation
Step-by-step solution
This principle says that allele frequencies in a population are stable and is constant from generation to generation. The gene pool (total genes and their alleles in a population) remains constant. This is called genetic equilibrium. Sum total of all the allelic frequencies is 1. Individualfrequencies, for example, can be named p, q, etc. In a diploid, p and q represent the frequency of allele A and allele a. The frequency of AA individuals in a population are simply p2. This is simply stated in another ways, i.e.,