15. Population genetics provides answers for all of the following questions exce

Question

15. Population genetics provides answers for all of the following questions except:

      a. What is the frequency of genetic disease in a population?

      b. What fraction of the phenotypic variation in a trait is the result of genetic variation?

      c. What alleles are most likely to mutate?

      d. Given certain quantifiable variables, how long is a disease likely to persist?

      e. How rapidly can a disease gain a foothold in a population?

16. Which of the following is not one of the assumptions of the Hardy-Weinberg law?

      a. The population is very large.

      b. There is non-random mating within the population.

      c. Mutations in the alleles do not occur.

      d. No migration occurs into or out of the population.

      e. The ability of all genotypes for survival and reproduction is the same.

17. The heterozygote genotype frequency term for a gene with two alternate alleles A (frequency p) and a (frequency q) in the Hardy-Weinberg equation is:

      a. p2                                  b. q2                        c. 2pq                     d. (p+q)2                 e. p+q

18. In humans, brachydactyly is a dominant condition. Six thousand four hundred people in a population of 10,000 show the disease (1,600 are BB, 4,800 are Bb) and 3,600 are normal phenotypes (bb). The frequency of the b allele is:

      a. 0.6                               b. 0.8                     c. 0.36                   d. .48                     e. 0.16

19. Fitness is described as:

      a. an individual’s ability to survive to adulthood

      b. an individual’s ability to reproduce

      c. an individual’s ability to adapt to change

      d. all of the above are true

Explanation / Answer

15 d is the right answer because how long the disease will persist js hard to tell but what can be told is in how many generstions the disease will be there

16 mating is random ,this was the assumption taken by the them. So this is the answer

17 2pq this is the middle term in the equation and it depicts the heterozygotes

18 0.6 is the answer

19 all of the above is true because all these factor are required to survive . Adaptation,survival instinct and reproduction is the main essentials of fitness

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