morgan

Mor·gan

(mōr'găn),

Harry de R., British physician, 1863-1931. See: Morgan bacillus.

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mor·gan (M),

(mōr'găn),

The standard unit of genetic distance on the genetic map: the distance between two loci such that on average one crossing over will occur per meiosis; for working purposes, the centimorgan (0.01 M) is used.

[T.H. Morgan, U.S. geneticist, 1866-1945]

morgan

[môr′gən]

Etymology: Thomas H. Morgan, American biologist, 1866-1945

a unit of measure used in mapping the relative distances between genes on a chromosome. The measurement uses the total crossover value as the basic unit so that 1 morgan equals 100% crossing over or 1 centimorgan equals 1% recombination. One centimorgan is also equal to one map unit. See also map unit.

mor·gan

(mōr'găn)

The standard unit of genetic distance on the genetic map: the distance between two loci such that on average one crossing over will occur per meiosis; for working purposes, the centimorgan (0.01 M) is used.

[T.H. Morgan, U.S. geneticist, 1866-1945]