Allele
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An allele is a variant of the sequence of nucleotides at a particular location, or locus, on a DNA molecule.
Blue eye 2
Boje oka
Human eye with limbal ring, anterior view
Lens 5
Genetics
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Genetics is the study of genes, genetic variation, and heredity in organisms. It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustin
Portrait of Imre Festetics, the first geneticist and ethologist. His concepts of selection and evolution were later formulated in Charles Darwin's theory of evolution.
Walther Flemming's 1882 diagram of eukaryotic cell division. Chromosomes are copied, condensed, and organized. Then, as the cell divides, chromosome copies separate into the daughter cells.
Siamese cats have a temperature-sensitive pigment-production mutation.