GK
HUMAN BODY AND REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The mother
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The father
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Mother’s mother
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Father’s father
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Detailed explanation-1: -Every egg has an X sex chromosome; a sperm can have either an X or a Y sex chromosome. If the sperm that fertilizes an egg has an X chromosome, the baby is female; if it has a Y chromosome, the baby will be a boy.
Detailed explanation-2: -Does the female egg or male sperm determine sex? Whichever chromosome the sperm that fertilizes the egg has is what determines whether a baby will have male or female sex chromosomes. Of course, you must have both an egg and sperm to make a baby, but the sperm is the determining factor regarding biological sex.
Detailed explanation-3: -Humans are diploid organisms i.e., they have 46 chromosomes. An offspring inherit 23 chromosomes each from the father and mother. Males undergo the process of spermatogenesis producing spermatocytes. Males transfer 22 + Y or 22 + X chromosomes to their sperm which combines with 22+X chromosomes of the ovum.