raghu often taunts his wife for having only daughters and no son. as a student of Biology, how will you convince Raghu that his wife has no role in giving birth to girls only ?
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I will explain him that it's father's sperm which decides the gender of the baby
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By telling Raghu that sex of the child is determined at the time of conception. Women are homogametic, i.e., they produce only one type of ova (22 + X). Males are heterogametic. They produce two types of sperms, androsperms (22 + Y) and gynosperms (22 + X). The two types of sperms are formed in equal proportion. It is chance factor that gynosperm fuses with the ovum (22 + X and 22 + X) resulting in the female child. The same chance is possible for the second and even the third time. In any case, for the sex of the child, only the father is responsible.
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