how is the equal genetic contribution of male and female parents insured in the progeny
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in the chromosomes 23 pairs ....and genetic combination ...crossing over ....accomodate to progeny
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During fusion of sex cells(sperm and ova) each has 23 number of chromosomes.After fusion the zygote will have 46 number of chromosomes which then be in a birth child.These maintains the number of chromosomes/genetic contribution be equal in birth child as of its parent.
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