Question

Generation-to-generation change in the allele frequencies in a population is _____.

Answer 1

Generation-to-generation change in the allele frequencies in a population is _____.

a. genetic drift b. natural selection c. macroevolution d. mutation e. Microevolution

Answer:

e. Microevolution

Explanation:

Microevolution refers to the small changes in the allele frequencies and the genotype frequencies of the populations. These changes occur over a few generations and deviate the populations from the genetic equilibrium.  

The processes responsible for microevolution are mutations, genetic drift, gene flow, etc. Similarly, sexual selection and nonrandom mating also change the allele frequencies of the populations. Likewise, natural selection brings about microevolution by increasing the frequencies of the alleles that impart the beneficial traits to the organisms.