How is the sex of the newborn determined in humans??
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Answered by
245
by the determination of sex
like
male have x and y chromosomes
female have 2x chromosomes
when male x fuses with x girl child will be born
when male y fuses with girl x male child will be born
pls mark me as the brainliest
like
male have x and y chromosomes
female have 2x chromosomes
when male x fuses with x girl child will be born
when male y fuses with girl x male child will be born
pls mark me as the brainliest
venkat4613:
brainliest plz
Answered by
128
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.
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.
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