Select ALL the statements that correctly describe the mechanisms of microevoluti
ID: 67777 • Letter: S
Question
Select ALL the statements that correctly describe the mechanisms of microevolutionary change.
1. Genetic drift results in increased frequencies of alleles that are beneficial in the current environment. 2. Artificial selection can lead to traits that are harmful for an individual’s ability to survive and reproduce. 3.Microevolutionary changes due to sexual selection are the result of heritable differences in mate preference. 4. Natural selection can introduce new alleles into a population. 5. Gene flow can cause rapid microevolutionary change. 6. Both mutations and gene flow can be important sources of new genetic diversity within a population.Explanation / Answer
Option 5 and 6 correctly describe the mechanims of microevolutionary change. Microevolution can be defined as the change in allele frequencies over time. The change can be due to mutations, selection (natural and artificial), gene flow and genetic drift. Both mutations and gene flow can cause rapid microevolutionary changes.