from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. 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.
- adj. Of or relating to heterogametes.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That produces heterogametes
- adj. That produces different forms of the same gamete e.g. spermatozoa containing either an X- or a Y-chromosome.
Sorry, no etymologies found.
Morgan's first papers dealt with the demonstration of sex linkage of the gene for white eyes in the fly, the male fly being heterogametic.
A theory1 of sexes might propose a causal explanation for the actual historic phenomenon of the origin and maintenance of sexual reproduction in animals, addressing such issues as the heterogametic basis of sex determination.
Wordnik is becoming a not-for-profit! Read our announcement here.