Explain the process of speciation
Geographic isolation occurs so the population is separated and the two groups cannot interbreed. Variation due to mutation arises in the separate populations leading to different alleles becoming dominant and natural selection can occur where the strongest survive and reproduce to pass on their alleles. Over time the two populations will have changed so much that they can no longer interbreed to produce fertile offspring.
MW
Related Biology GCSE answers
All answers ▸Sickle-Cell Anemia is an example of an autosomal recessive genetic disorder. If two unaffected parents have 3 offspring, 2 of which do not have the disorder, and 1 who does, what must the parents Genotypes be?
Explain what happens to a cell during mitosis
Describe the similarities and differences between the processes of osmosis and diffusion
What is diffusion?