Evolution In a population

How do populations evolve over time?

As Individuals are selected by natural selection genetic makeup of the population changes over time. Each generation has increased fitness as favorable traits become more common. Natural selection is not the only thing that can change a population. There are 5 sources of evolution. Mutation, Gene flow, Non random mating, Genetic drift, and Natural selection

What is the Hardy-Weinberg equilibrium?

The Hardy-Weinberg equilibrium describes a non evolving population that preserves allele frequencies. Why do we use the Hardy-Weinberg equilibrium if it doesn’t occur in nature? It allows us to have a baseline to compare populations with. We can use it to test genotype frequency and we can test to see how that population compares with the Hardy-Weinberg equilibrium.

 

 

 

 

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