AP BIOLOGY

Detailed explanation-1: -Heritability is a measure of how well differences in people’s genes account for differences in their traits.

Detailed explanation-2: -Each gene can have several variants, called alleles, which code for different variants of the trait in question. Genes reside in a cell’s chromosomes, each of which contains many genes.

Detailed explanation-3: -Genetic variation refers to differences among the genomes of members of the same species. A genome is all the hereditary information-all the genes-of an organism.

Detailed explanation-4: -Inherited (or hereditary) variants are passed from parent to child and are present throughout a person’s life in virtually every cell in the body. These variants are also called germline variants because they are present in the parent’s egg or sperm cells, which are also called germ cells.

Detailed explanation-5: -Two types of variations include genotypic and phenotypic variation. Genotypic variations: The variation develops due to changes in the genes and chromosomes. These variations are inheritable.