Genetic Diversity And Adaptations Flashcards
What is natural selection
The proscess in which fitter individuals who are more adapted to the environment survive and pass on the advantageous genes to future generations
What is evolution
The process by which the frequency of alleles in a gene pool changes overtime as a result of natural selection
How may evolution occur via natural selection
1: there are a variety of different phenotypes within a population
2: an environmental change occurs and the selection pressure changes
3: some individuals have an advantageous allele which gives them a selective advantage and allows them to survive and reproduce
4: advantageous alleles are passed down to their offspring
5: frequency of alleles in a population changes leading to evolution