Gamete cells haploid cells or gametes are specialized for fertilization . Gametes that can fuse identical in shape and size ( isogami ) or differ in one or both of these properties ( anisogami ) . The term 'male ' and ' female ' are often applied to gametes , but only serves to show the sex of origin , because the gametes do not have sex . When different in size , usually larger gametes called makrogamet , and the smaller called mikrogamet . Sometimes none on plasmogami in fertilization , in this case the fused nuclei can be considered as gametes .
Gametes are sperm or egg cells , especially mature and already functioning in sexually breeding process ; germ cells are formed from stem cells seed gametogenesis called spermatozoa , and the female is called the ovum .
In cross monohibrid known that the gametes are formed in P2 there are 2 kinds , while the dihybrid crosses formed in P2 there are 4 sorts , to cross trihybrid 8 kinds , when n crosses with different properties will be obtained 2n kinds of gametes . To determine the kinds of gametes are formed fork diagrams can be used , for example : AABB , kinds of gametes are :
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