10) In a population of elk, intense male-male competition ensures that only one

Question

10) In a population of elk, intense male-male competition ensures that only one out of ten adult males actually breeds, whereas all adult females breed. If the total number of adults is 100 and the sex ratio is equal, what is the effective population size?

11) What will the frequency of the AB genotype be in a population after one generation if the original frequency is 0.8, the rate of recombination each generation (r) is 0.5, and the linkage disequilibrium coefficient is 0.1?

12) If the additive genetic variation of a trait is 0.2, the dominance variation is 0.1, and the environmental variation is 0.4, then what is the narrow-sense heritability (h2) for the trait?

Explanation / Answer

10), The number of subjects in a population those contribute to the offspring to the next generation is known as effective population size.

In the given population, total number of individuals is = 100

Sex ratio is equal, means number of female = number of males

So, number of males = 10. Out of 10 animals, only one is contributing to the offspring, means out of 50 populations, 5 animals contribute to the effective population size. All females are breeding, so all female 50 animals contribute to the effective population size.

Thus, the number of effective population size = 5 males + 50 females = 55.

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