Variation is always present in populations because ____.
A) alleles control multiple genes
B) genes blend during inheritance
C) alleles blend during inheritance
D) genes are reshuffled by reproduction and altered by mutations
E) new traits develop when traits that are not expressed are lost

Question

Quizplus · Accepted Answer

Variation is the result of genes being reshuffled by reproduction and altered by mutations. This is because genetic diversity arises from the combination of alleles during reproduction, as well as the occasional emergence of new mutations that allow for new traits to arise in the population. Alleles do not control multiple genes, genes do not blend during inheritance, and alleles do not blend during inheritance. The idea that new traits develop when traits that are not expressed are lost is not accurate; rather, new traits arise from mutations or the combination of existing traits.

Variation Is Always Present in Populations Because ____