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heterozygous

[ het-er-uh-zahy-guhs ]

adjective

, Genetics.
  1. relating to or being a heterozygote, an organism that possesses a pair of differing alleles, one dominant and one recessive, of a particular gene.


heterozygous

/ ˌhɛtərəʊˈzaɪɡəs /

adjective

  1. genetics (of an organism) having different alleles for any one gene Compare homozygous

    heterozygous for eye colour

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


heterozygous

/ hĕt′ər-ə-zīgəs /

  1. Relating to a cell that has two different alleles at corresponding positions on homologous chromosomes.
  2. Compare homozygous


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Other Words From

  • het·er·o·zy·gos·i·ty [het-, uh, -roh-zahy-, gos, -i-tee], noun
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Word History and Origins

Origin of heterozygous1

First recorded in 1900–05; hetero- + Greek zygós, adjective derivative of zygón “yolk”; -ous
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Example Sentences

This would indicate that the frog belongs to those animals in which the male is heterozygous for sex.

Being heterozygous for two factors they will produce four kinds of gametes in equal numbers, viz.

Such birds being heterozygous for the inhibitor factor, should be whites showing some coloured "ticks."

The cross between a heterozygous dominant and a recessive also leads to equal numbers of recessives and of heterozygous dominants.

There exists repulsion between the factors G and F in a zygote which is heterozygous for them both.

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