In humans,the determination of a female offsp | vedclass

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(B) In humans,the sex of the offspring is determined by the sex chromosomes of the father. Females have $XX$ chromosomes and produce only one type of

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Fusion of an $X$-chromosome-bearing ovum with an $X$-chromosome-bearing sperm.

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(B) In humans,the sex of the offspring is determined by the sex chromosomes of the father. Females have $XX$ chromosomes and produce only one type of gamete (ovum) containing an $X$ chromosome. Males have $XY$ chromosomes and produce two types of gametes: $50\%$ containing an $X$ chromosome and $50\%$ containing a $Y$ chromosome. When an $X$-chromosome-bearing sperm fertilizes an $X$-chromosome-bearing ovum,the resulting zygote is $XX$,which develops into a female offspring. Therefore,the fusion of an $X$-chromosome-bearing ovum with an $X$-chromosome-bearing sperm results in a female.

In humans,the determination of a female offspring is decided by which of the following?

Similar Questions

Male heterogamety,which is essential for sex determination in new offspring,is observed in which of the following?

If the ratio between $X$-chromosomes and the complete set of autosomes is $0.5$,then the individual will be:

In grasshoppers,the male has ........ and the female has ......... chromosomes.

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$A$: Holandric traits are passed from one generation to the next generation.
$R$: These traits appear more frequently in one sex than in other.

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