Thursday, February 17, 2011

Blog 3

Blog #3 Explain what microevolution is? What are the three ways that variation occurs?

Microevolution is a change in gene frequency within a population. This change is due to four different processes: mutation, selection, gene flow and genetic rift. For example, as the bird species live for many generations, evolution would start to take effects. The DNA is altered and it is some-what rare to have a  mutation. Basically, genes would cross thus creating something additional.

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