emilie3849
emilie3849
09.01.2020 • 
Biology

Survival for any species. offspring are formed material from parents combine to form new genetic codes. each parent contributes half of a child' , which occurs when the sperm of the parents meet. the sperm and egg each contain only half of a parent's genetic information, which makes the child's genetic code different from the parents while maintaining some genetic identity. each cell has 23 pairs of , making it possible for dna from each parent to be halved to produce the and egg cells; this ensures these cells only receive one copy of a chromosome from each pair. this cell division process is achieved in a process that takes place in the testis and ovaries.

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