Q.4. Neeta gave birth to a girl child. Everybody in her house was disappointed and blamed her for giving birth to a girl child. Do you agree with them? Give reason in support of your answer.
Please find below the solution to the asked query
No, I don't agree. Males contribute more than a female in deciding the sex of a child
In human beings, the females have two X chromosomes and the males have one X and one Y chromosome. Therefore, the females are XX and the males are XY.
The gametes, as we know, receive half of the chromosomes. The male gametes have 22 autosomes and either X or Y sex chromosome.
Type of male gametes: 22+X OR 22+ Y.
However, since the females have XX sex chromosomes, their gametes can only have X sex chromosome.
Type of female gamete: 22+X
Sex determination in humans
Thus, the mother provides only X chromosomes. The sex of the baby is determined by the type of male gamete (X or Y) that fuses with the X chromosome of the female.
Hope this information will clear your doubts about the topic.
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