non-crossovern.

Brit.

/nɒnˈkrɒsəʊvə/, U.S.

/nɑnˈkrɔsˌoʊvər/,

/nɑnˈkrɑsˌoʊvər/

Origin: Formed within English, by derivation. Etymons: non- prefix, crossover n.

Etymology: < non- prefix + crossover n. (compare sense 5).

Genetics.

A chromosome that has not undergone crossing over during meiosis; a gamete that has one or more such chromosomes; (also) an individual who does not exhibit the phenotypic results of crossing over (at one or more loci). Frequently attributive.

ΘΚΠ

the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > gametes

gamete1878

zoogamete1879

planogamete1880

macrogamete1888

microgamete1888

isogamete1891

megagamete1891

oogamete1891

progamete1892

heterogamete1897

ovum1900

non-crossover1914

merogamete1925

hologamete1926

anisogamete-

1914 Amer. Naturalist 48 532 Non-crossovers.

1915 Amer. Naturalist 49 393 These represent the ‘non-cross-over’ gametes.

1962 Lancet 12 May 1026/1 In the three families there were six children who could be considered non-cross-overs.

1971 M. Levitan & A. Montagu Textbk. Human Genetics x. 379 The former could identify a noncrossover gamete of the AB/ab parent.

1972 McGraw-Hill Yearbk. Sci. & Technol. 1971 136/2 Analysis of the requirements for nonhomologous pairing disclosed that the chromosomes involved were invariably noncrossovers.

1999 Proc. National Acad. Sci. U.S.A. 96 14187/3 Crossovers or noncrossovers can result depending on how the junction is processed.

This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).

单词	non-crossover
释义	non-crossovern. Brit. /nɒnˈkrɒsəʊvə/, U.S. /nɑnˈkrɔsˌoʊvər/, /nɑnˈkrɑsˌoʊvər/ Origin: Formed within English, by derivation. Etymons: non- prefix, crossover n. Etymology: < non- prefix + crossover n. (compare sense 5). Genetics. A chromosome that has not undergone crossing over during meiosis; a gamete that has one or more such chromosomes; (also) an individual who does not exhibit the phenotypic results of crossing over (at one or more loci). Frequently attributive. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > gametes gamete1878 zoogamete1879 planogamete1880 macrogamete1888 microgamete1888 isogamete1891 megagamete1891 oogamete1891 progamete1892 heterogamete1897 ovum1900 non-crossover1914 merogamete1925 hologamete1926 anisogamete- 1914 Amer. Naturalist 48 532 Non-crossovers. 1915 Amer. Naturalist 49 393 These represent the ‘non-cross-over’ gametes. 1962 Lancet 12 May 1026/1 In the three families there were six children who could be considered non-cross-overs. 1971 M. Levitan & A. Montagu Textbk. Human Genetics x. 379 The former could identify a noncrossover gamete of the AB/ab parent. 1972 McGraw-Hill Yearbk. Sci. & Technol. 1971 136/2 Analysis of the requirements for nonhomologous pairing disclosed that the chromosomes involved were invariably noncrossovers. 1999 Proc. National Acad. Sci. U.S.A. 96 14187/3 Crossovers or noncrossovers can result depending on how the junction is processed. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < n.1914
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