Description
This video defines a species, then explains why there is variation in sexually reproducing species. The video compares how variations caused by inheritance alone would look as a graph (discontinuous variation: bar chart), with how variation caused by both the genotype and the environment would look as a graph (continuous variation: bell shaped curve). It also gives examples of the causes of mutations and the impact that they could have on the phenotype.
Key Words
species, variation, mutations, phenotype, genotype
