Asked by Marcus Morgan on Jul 25, 2024
Verified
Which of the following is the only source of new variation in a population?
A) gene flow
B) genetic drift
C) mutation
D) nonrandom reproduction
E) natural selection
Mutation
Change in the nucleotide structure of an organism’s DNA.
Genetic Variation
The differences in DNA sequences among individuals within a population, leading to diversity in traits.
- Understand the significance of genetic diversity among populations in evolutionary processes and explore the contributions of natural selection, genetic drift, and gene flow to evolutionary changes.
Verified Answer
MF
Madison FazioJul 29, 2024
Final Answer :
C
Explanation :
Only mutation can create new genetic variation in a population. Gene flow is the movement of genes from one population to another and can introduce existing variation, but it cannot create new variation. Genetic drift and nonrandom reproduction can change the frequency of existing variation, but again, cannot create new variation. Natural selection acts on existing variation but does not create new genetic variation.
Learning Objectives
- Understand the significance of genetic diversity among populations in evolutionary processes and explore the contributions of natural selection, genetic drift, and gene flow to evolutionary changes.
Related questions
When a Natural Disaster Kills Off a Large Proportion of ...
The Idea That Population Growth Is Kept in Check Because ...
Which of the Following Mechanisms Can Disrupt Genetic Equilibrium ...
Which of the Following Contributes to Evolution ...
Social Research Indicates That a Person Is Most Likely to ...