Normal human being has how many pairs of chromosomes
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a normal human being has 23 pairs of chromosomes
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Answer: normal human beings have 23 pairs of chromosomes
Explanation: that means there are in Total 46 chromosomes. sex of a child depends on what happens during fertilization
1) If a sperm carrying X chromosome fertilizers and ovum which carries X chromosome then the child born will be a girl.
2) If a sperm carrying Y chromosome fertilization an ovum which carries X chromosome then the child born will be boy.
Thus, sperm from father determines the sex of the child.
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