Genetic diversity

What is natural selection

The process that leads to evolution in a population. It results in a species becoming better adapted to their environment. Adaptations may be anatomical eg the giraffe's long neck for reaching high branches, physiological eg a snake's venom, the ability of desert frogs to store water, and the release of antifreeze proteins by fish in cold climates or behavioural eg migration, hibernation.

What is the process of natural selection

1.New alleles for a gene are created by

random mutations

2. If the new alleles increases the chances

of the individual to survive in that

environment, then they are more likely to

survive and reproduce

3, This reproduction passes on the

advantageous allele to the next

generation.

As a result, over many generations, the

new allele increases in frequency in the

population

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