Some variation must be present in a population in order for natural selection to take place. These variations arise from mutations in the DNA and what other source?
Answer (2)
For natural selection to take place, variation in populations is crucial, and it arises from mutations and sexual reproduction. **Mutations **introduce new genetic variations, while sexual reproduction combines alleles uniquely in offspring, both contributing to the genetic diversity needed for natural selection to operate effectively. ;
Natural selection requires variation in populations, which arises from mutations and sexual reproduction. Mutations introduce new genetic changes, while sexual reproduction creates unique allele combinations from two parents. Both mechanisms enhance genetic diversity, allowing populations to adapt over time.
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