Why does it seem paradoxical to have populations with large amounts of variation that are also subject to natural selection? Describe four ways that natural selection can maintain phenotypic or genotypic variation in a population. (referencing evolutionary analysis 5th edition textbook)
Added by Mar-A W.
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Natural selection then acts on these traits, favoring those that are beneficial for survival and reproduction. Step 2: Four ways that natural selection can maintain phenotypic or genotypic variation in a population are: Show more…
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It seems logical that natural selection would work toward genetic uniformity; the genotypes that are most fit produce the most offspring, increasing the frequency of adaptive alleles and eliminating less adaptive alleles. Yet there remains a great deal of genetic variation within populations. Describe factors that contribute to this variation.
Adi S.
1. Why do you think it is necessary for there to be variation in a population in order for evolution by natural selection to occur? 2. Why is it necessary for traits to be inherited for evolution to take place? 3. If a population is already well adapted to its environment, will most mutations be helpful or harmful? Explain.
How does natural selection cause a population to become adapted to its environment over time?
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