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

Recent Examples of morgan from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'morgan'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of morgan

Thomas Hunt Morgan


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

Recent Examples of morgan from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'Morgan'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of morgan

Justin Morgan †1798 American teacher


Morgan

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biographical name Mor·gan \ˈmȯr-gən\

Definition of Morgan

  1. Daniel 1736–1802 American general in Revolution


Morgan

biographical name mor·gan

Definition of Morgan

  1. Sir Henry 1635–1688 English buccaneer


Morgan

biographical name mor·gan

Definition of Morgan

  1. John Hunt 1825–1864 American Confederate cavalry officer


Morgan

biographical name mor·gan

Definition of Morgan

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


Morgan

biographical name mor·gan

Definition of Morgan

  1. J(ohn) P(ierpont) Jr. 1867–1943 son of J.P. Morgan American financier


Morgan

biographical name mor·gan

Definition of Morgan

  1. Thomas Hunt 1866–1945 American geneticist


Morgan

biographical name mor·gan

Definition of Morgan

  1. William Wilson 1906–1994 American astronomer


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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