Outline of genetics

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Outline of Genetics

Genetics (pronounced: jə-ˈne-tiks, from the Greek genno "to give birth") is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.

Etymology

The term "genetics" was first suggested to describe the study of inheritance and the science of variation by prominent British scientist William Bateson in a personal letter to Adam Sedgwick, dated April 18, 1905.

Related Terms

Gene

A gene (pronounced: jēn) is a basic unit of heredity and a sequence of nucleotides in DNA or RNA that encodes the synthesis of a gene product, either RNA or protein.

DNA

DNA (pronounced: dē-ˌen-ˈā, abbreviation for Deoxyribonucleic acid) is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses.

RNA

RNA (pronounced: ˌär-ˌen-ˈā, abbreviation for Ribonucleic acid) is a polymeric molecule essential in various biological roles in coding, decoding, regulation and expression of genes.

Heredity

Heredity (pronounced: hə-ˈre-də-tē) is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents.

Genetic Variation

Genetic variation (pronounced: jə-ˈne-tik ˌver-ē-ˈā-shən) refers to diversity in gene frequencies, and it can refer to differences between individuals or to differences between populations.

See Also

External links

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