- Sex - Wikipedia, the free encyclopedia
In biology, sex is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into male and female reproductive roles. Sexual reproduction involves combining specialized cells to form offspring that inherit traits from both parents. Gametes can be identical in form and function (known as isogametes), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist: male gametes are small, motile, and optimized to transport their genetic ...Sexual reproduction · Sex determination · Sexual dimorphism
http://en.wikipedia.org/wiki/Sex
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Definitions of sex at Dictionary.com. ... 1. either the male or female division of a species, esp. as differentiated with reference to the reproductive functions.
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