Which of the following statements is true about the relationship between genetic variation and natural selection?
Genetic variation must be present in a population before natural selection can act on it.
Genetic variation arises in a population as a result of natural selection.
Natural selection can act on a population whether there is genetic variation within the population or not.
After natural selection acts on a population, the amount of genetic variation in the population always increases.
1 answer
Genetic variation must be present in a population before natural selection can act on it.
4 answers