morgan

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noun mor·gan \ˈmȯr-gən\

Definition of morgan

  1. 1 :  a unit of inferred distance between genes on a chromosome that is used in constructing genetic maps and is equal to the distance for which the frequency of crossing over between specific pairs of genes is 100 percent

  2. 2 :  centimorgan

Origin and Etymology of morgan

Thomas Hunt Morgan


First Known Use: 1919


Morgan

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noun Mor·gan \ˈmȯr-gən\

Definition of Morgan

  1. :  any of an American breed of light strong horses originated in Vermont from the progeny of one prepotent stallion of uncertain ancestry

Origin and Etymology of morgan

Justin Morgan †1798 American teacher


First Known Use: 1841


Morgan

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biographical name Mor·gan \ˈmȯr-gən\

Definition of Morgan

  1. Daniel 1736–1802 Am. gen. in Revolution


Morgan

biographical name mor·gan

Definition of Morgan

  1. Sir Henry 1635–1688 Eng. buccaneer


Morgan

biographical name mor·gan

Definition of Morgan

  1. John Hunt 1825–1864 Am. Confed. cavalry officer


Morgan

biographical name mor·gan

Definition of Morgan

  1. J(ohn) P(ier*pont) play \ˈpir-ˌpänt\ 1837–1913 Am. financier


Morgan

biographical name mor·gan

Definition of Morgan

  1. J(ohn) P(ierpont) Jr. 1867–1943 son of prec. Am. financier


Morgan

biographical name mor·gan

Definition of Morgan

  1. Thomas Hunt 1866–1945 Am. geneticist


Morgan

biographical name mor·gan

Definition of Morgan

  1. William Wilson 1906–1994 Am. astron.


Medical Dictionary

morgan

play
noun mor·gan \ˈmȯr-gən\

Medical Definition of morgan

  1. 1:  a unit of inferred distance between genes on a chromosome that is used in constructing genetic maps and is equal to the distance for which the frequency of crossing-over is 100 percent

  2. 2:  centimorgan

Biographical Note for morgan

Morgan

,

Thomas Hunt

(1866–1945), American geneticist. Morgan spent much of his career as a professor of experimental biology at Columbia University. He became a pioneer in the developing science of genetics. In 1908 and 1909 he began a series of experiments first with mice and rats and then with fruit flies of the genus Drosophila. During the next several years he discovered many mutant traits, such as eye colors, body colors, and wing variations, and determined the modes of heredity. He and the members of his experimental laboratory made such advances in genetics as a clear understanding of sex-linkage, final proof of the chromosome theory of heredity, establishment of the linear arrangement of genes in the chromosome, the demonstration of interference in crossing-over, and the discovery of chromosomal inversions. He was awarded the Nobel Prize for Physiology or Medicine in 1933.


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