BIOLOGY✔️
CLASS 10✔️
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How is the equal genetic contribution of male and female parents ensured in the progeny?
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Explanation:
IN HUNAN BEING THERE ARE TOTAL 2 PAIR OF CHROMOSOMES.
1 PAIR OF CHROMOSOME COBTAIN 23 CHROMOSOMES .OUT OF WHICH 23 CHROMOSOMES ARE GIVEN BY MALE AND 23 CHROMOSOMES BY FEMALE. IF IT IS XX THEN IT IS GIRL IF IT IS XY THEN IT IS BOY
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During gamete formation, each gamete receives half the number of chromosomes i.e. 23. During sexual reproduction, a female gamete (having 23 chromosomes) fuses with a male gamete (having 23 chromosomes) to form zygote. Zygote is diploid which contains 23 chromosomes from mother and 23 from father. In this way, an equal genetic contribution of male and female parents is ensured in the progeny.
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