Question 15 (1 point). Which of the following statements is TRUE? Random change of allele frequencies over several generations in a very large population of wild pigs could be an example of genetic drift. Changes in allele frequencies caused by some individuals in a population surviving better than others one month after a hurricane could be an example of genetic drift. Random changes in allele frequencies caused by a few individuals starting a new population on an island could be an example of natural selection. A random mutation causing a male to have a new phenotype that is preferred by many females in the population could be an example of genetic drift. Populations in which natural selection is not occurring are more likely to undergo genetic drift.
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The bottle neck effect occurs when A few individuals start a new population in an area that is separate from their original population The environment selects a small number of individuals in a population A few individuals in a population are randomly selected for by an event Allele frequencies of a population remain constant over time Allele frequencies shift leading to an adaptation Small populations are more susceptible to the effects of genetic drift. True False Genetic drift selects for specific alleles in a population. True False Which of the following is an example of the founder effect? A forest fire kills a large number of squirrels and the remaining few squirrels survive and reproduce. A hurricane blows a few lizards to an island in the Caribbean that previously did not have these types of lizards on them. Petunia rode her bicycle over a population of insects on the sidewalk and killed some of them. The population of Cheetahs in South Africa
Jorge V.
Which of the following is false? (1 pt) Traits/phenotypes that decrease survival can't be selected for. Inbreeding can change genotype frequencies, but does not change allele frequencies. Small populations are more susceptible to genetic drift. Gene flow makes allele frequencies more similar between the two affected populations. Mutation on its own does not change allele frequencies at a high rate.
Madhur L.
In a large, sexually reproducing population with random mating with respect to phenotype, the frequency of an allele changes from 20% to 60% across several generations. Based upon this change in allele frequency, the most likely cause of the change is that the allele mutates readily. that genetic drift is responsible for the increase in the allele’s frequency. that the allele codes for a trait that is maladaptive in thepopulation. that the allele codes for a trait that is adaptive in thepopulation.
Adi S.
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