heterogametic


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Related to heterogametic: homogametic

het·er·o·ga·met·ic

 (hĕt′ə-rō-gə-mĕt′ĭk)
adj.
1. Producing dissimilar gametes, such as those of human males, who produce two types of spermatozoa, one bearing the X chromosome and the other bearing the Y chromosome.
2. Of or relating to heterogametes.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

heterogametic

(ˌhɛtərəʊɡəˈmɛtɪk)
adj
(Genetics) denoting the sex that possesses dissimilar sex chromosomes. In humans and many other mammals it is the male sex, possessing one X-chromosome and one Y-chromosome. Compare homogametic
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
Apparently James Bond possessing heterogametic genes is of paramount importance for a large proportion of the audience studios do not wish to alienate.
Males typically have two different kinds of sex chromosomes (XY) and are called the heterogametic sex.
The Alpine swift we describe was a male and, considering that in avian species the females are heterogametic (WZ) whereas males are homogametic (ZZ), Polydactyly in this bird may have been a recessive, sex-linked genetic anomaly.
Haldane (1922) observed that where one sex is absent, rare, or infertile in [F.sub.1] hybrids, it is usually the heterogametic sex.
The first step is establishment of the chromosomal sex at the time of fertilization of the ovum--the heterogametic (XY) sex is male and the homogametic sex (XX) is female.
Evidence of female heterogametic genetic sex determination in white sturgeon," Journal of Heredity, vol.
In all birds, the female is the heterogametic sex (ZW), while the male is homogametic (ZZ).
(2005) suggested that females were the heterogametic sex (WZ) after finding one sex-linked marker that mapped only to the maternal linkage map (presumably on the W chromosome).
The study reveals a mechanism that an autosomal feminizing gene suppressed by a Y-chromosome-encoded small RNA triggers the plant dioecy in which male is the heterogametic gender (XY).
In avians, male homogametic sex (ZZ), the gonads develop symmetrically, whereas female heterogametic sex (ZW), the gonads develop asymmetrically- only the left side develops into a functional ovary (Romanoff, 1960).
Abbreviations: AFLP, amplified fragment-length polymorphisms; dph, days post-hatching; ESD, environmental sex determination; GSD, genetic sex determination; GXE, genotype-by-temperature interaction; PCR, polymerase chain reaction; SD, sex determination; TE, temperature effect; TSD, temperature sex determination: ZW/ZZ, female heterogametic sex-determination system.
The rule predicts that if one or the other sex is rare or inferior in hybrids, then that sex is likely to be heterogametic. In Cyprinodon, hybrids between distantly related species often show evidence of female-biased sex ratios or male inferiority (Turner and Liu, 1977; Cokendolpher, 1980; Tech, 2006).