The different forms of a gene.

Having two different alleles for a trait.

Having two of the same alleles for a trait.

The study of heredity.

An organism that has two different alleles for a trait. (Heterozygous)

A chart that shows all the possible combinations of alleles that can result from a genetic cross

GG, Gg, gg

Green, yellow

A tightly wound strand of DNA found in the nucleus of a cell.

Deoxyribonucleic Acid- A long nucleic acid molecule containing the genetic instructions for the development and functioning of an organism

A segment of DNA on a chromosome that codes for a specific trait.

An organism's genetic makeup.

An organism's physical appearance, or visible traits.

Trait that will show up in an organism's phenotype if the gene is present.

Trait of an organism that can be masked by the dominant form of a trait.