What happens in case of Bottle neck effect? Tick the correct option.
The bottleneck effect occurs when physical or geographic barriers force a new population to settle in a new area.
Due to competition, predators, or diseases, the population size drastically shrinks in the bottleneck effect.
Both (1) and (2)
None of the above
The founder effect occurs when physical or geographic barriers cause a new population to settle in a new area. The newly generated population does not communicate or mate with the existing population. The new population's allelic frequencies will differ from those of the original population as a result.
Due to competition, predators, or diseases, the population size drastically shrinks in the bottleneck effect. Because the organisms that carry particular alleles are eliminated, the frequency of those alleles in a population changes. Since they are the only remaining alleles, the others multiply.
Hence, option 2 is the correct answer.