Question

What are the 5 requirements for evolution to occur?

Answer 1

Evolution:

1. The process by which modern organisms have descended from their ancestors, with changes in their allele frequencies, is called evolution.
2. The mechanism of evolution occurs due to the changes in the gene pool- the collection of genes. There are four key mechanisms that cause a population. These include:

• Mutation.
• Gene Flow.
• Genetic Drift.
• Natural Selection.

5 requirements for evolution:

1. Natural Selection - Natural selection is the mechanism through which living organism populations adapt and change.
2. Mutation - A mutation is a change in an organism's DNA sequence.
3. Gene flow - The movement of genes into or out of a population is referred to as gene flow.
4. Non-random mating - Non-random mating happens when the chance of two individuals in a population mating is not the same for all potential genotype combinations.
5. Finite population size (genetic drift) - It depicts a population's random variations in the number of gene variants.