Homogametic

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 This term refers to the sex of a species in which the sex chromosomes are identical. For example, in humans (and most other mammals), the female is the homogametic sex - females have two identical homologous chromosomes (XX), whereas males, the heterogametic sex, have two homologous chromosomes of different sizes with different genes (XY). [1]

  1. ↑ Waters P.D. (2007) Mammalian sex--Origin and evolution of the Y chromosome and SRY. Available at: http://www.ncbi.nlm.nih.gov/pubmed/17400006 (accessed 23/10/2012
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