Q. 5 - Biology

Question

Population genetics is the study of: 

a. how selective forces change the allele frequencies in a population over time 

b. the genetic basis of population-wide traits 

c. whether traits have a genetic basis 

d. the degree of inbreeding in a population 

Step-by-Step Solution

Answer

Option (a) is correct as it explains required selective forces to change the allele frequencies in a population over time. 

Population genetics :

We explore genetic diversity within populations in population genetics, examining this variation and predicting changes in the frequencies of genes and alleles in populations across time.

Explanation :

Option (a), The effect of selecting factors on allele frequencies in a population over time. Population genetics is a branch of genetics that helps evolutionary biologists understand genetic changes within and across populations. Adaptation, speciation, and population structure are all examined throughout the genetic research in order to provide a more in-depth look at variance. As a result, population genetics can help explain why allele frequencies in a population shift over time. As a result, the correct answer is (a).

Other options :

(b) The genetic basis of a population-wide trait is provided. Modern evolutionary synthesis relies heavily on population genetics. However, it is not included in a large-scale trait analysis. It's the incorrect response.

(c) Whether or not a characteristic has a genetic basis is stated. Any population's evolution may be determined by looking at changes in allele frequencies rather than studying qualities with a genetic foundation. It's the incorrect response.

(d) It is determined by a population's degree of inbreeding. Changes in allele frequencies in a population and this population of freely interbreeding individuals are explained by the words " allele frequency " and " population ". However, population genetics does not investigate the degree of interbreeding in a population. It's the incorrect response.