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hemizygous

British  
/ ˌhɛmɪˈzaɪɡəs /

adjective

  1. genetics (of a chromosome or gene) not having a homologue; not paired in a diploid cell

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In this case, sex-linked traits will be more likely to appear in the female, in which they are hemizygous.

From Textbooks • Jun. 9, 2022

Mice were then intercrossed to obtain ‘CPPSML’ males with homozygous status of Pten, p53, and Smad4, heterozygous status of mTmG and LSL-LUC, and hemizygous status of PB-Cre.

From Nature • Mar. 19, 2017

Males are said to be hemizygous, in that they have only one allele for any X-linked characteristic.

From Textbooks • Apr. 25, 2013

This difference is expected because the population size of the chromosome is three quarters that of autosomes, and the chromosome can experience greater purifying selection because of exposure of deleterious recessive alleles in hemizygous males.

From Nature • Feb. 8, 2012

If the reported viability effects only occur in hemizygous deletion hybrids, then they would never contribute to incompatibility in normal hybrids and thus do not contain DM HI genes.

From Science Magazine • Sep. 15, 2011