Dictionary > Heterogametic

Heterogametic

Definition
adjective
Having more than one kind of sex chromosome (or gamete)
Supplement
In humans, males are naturally heterogametic because they possess two types of sex chromosome: X-chromosome and Y-chromosome.
In gamete production, the males produce spermatozoa, each containing one sex chromosome, which may either be X or Y-chromosome. Thus, they also have two types of gametes: a sperm carrying the X-chromosome and another with the Y-chromosome.
Word origin: Greek h├ęteros (other, different)
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Related term(s):

  • Heterogametic sex


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