Following are key points about the effect of genetic drift:

A. Genetic drift is significant in small populations.

B. Genetic drift can cause allele frequencies to change in a pre-directed way.

C. Genetic drift can lead to a loss of genetic variation within populations.

D. Genetic drift can cause harmful alleles to become fixed.

Which one of the following combination of the above statements are true?

#Question id: 3359

#Unit 9. Evolution & Diversity of Life Forms

Amount of p allele is 100, amount of q allele is 50 at locus in population at time, after forward mutation their amount will change as following, p become 70 and q become 80. What is amount of change in frequency of q allele?

#Question id: 3360

#Unit 9. Evolution & Diversity of Life Forms

Which of the following does not alter hardy Weinberg equability?

#Question id: 3361

#Unit 9. Evolution & Diversity of Life Forms

In a population 16% individual affected with autosomal recessive diseased. how many are expected to be normal phenotype if population size is 250 ?

#Question id: 3362

#Unit 9. Evolution & Diversity of Life Forms

The Hardy-Wienberg principle comes from considering what happens when Medelian genes act on population. The model predicts that there will be no change in allele frequencies when

#Question id: 3363

#Unit 9. Evolution & Diversity of Life Forms

An autosomal recessive condition affects 1 newborn in 100 in a random mating population without any disruptive acting force. What is the approximate expected frequency of carriers in this population?

#Question id: 3364

#Unit 9. Evolution & Diversity of Life Forms

Which of the following equations represents the corresponding equilibrium for a locus with three alleles p, q and r of diploid individuals? (P, Q and R represent the frequencies of p, q and r, respectively)