Scientists compared the HBB gene (beta-globin) in individuals with normal red blood cells and individuals with sickle-cell disease.

Sorghum is a crop used for food. Scientists found a specific mutation in a gene that carries instructions for a "water-gate" protein (ABA receptor).

The Kermode bear, also known as the "spirit bear," is a rare variant of the North American black bear found in the rainforests of British Columbia.

Scientists are sequencing the DNA of a population of fruit flies kept in a laboratory.

A population of rock pocket mice lives in a desert environment where the ground is covered in dark-colored volcanic rock.

Siamese cats are famous for their unique fur pattern: many have a light-colored body but dark "points" on their ears, paws, and tail.