A gamete is a cell that fuses with another cell during fertilization (conception) in organisms that reproduce sexually.
In species that produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual that produces the larger type of gamete—called an ovum (or egg)—and a male produces the smaller tadpole-like type—called a sperm. This is an example of anisogamy or heterogamy, the condition wherein females and males produce gametes of different sizes.
In contrast, isogamy is the state of gametes from both sexes being the same size and shape, and given arbitrary designators for mating type.
The name gamete was introduced by the biologist Gregor Mendel. Gametes carry half the genetic information of an individual, 1n of each type.
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