In humans, sex is determined by:

Answer

the presence or absence of the Y chromosome.

the presence or absence of the SRY gene.

the presence or absence of the X chromosome.

the presence of only two sex chromosomes.

Question

In humans, sex is determined by:

Answer
		
         the presence or absence of the Y chromosome.

		
         the presence or absence of the SRY gene.

		
         the presence or absence of the X chromosome.

		
         the presence of only two sex chromosomes.

anonymous · Answer

Between A or B, not sure though. Because SRY  gene is also needed, and you also need a Y chromosome.. so??

abhisar · Answer

go with A

abhisar · Answer

In addition to SRY gene there are more genes required for it, which is present on Y chromosomes

anonymous · Answer

Thats what I was thinking but both are technically correct.

abhisar · Answer

but u hv to go for the most appropriate

abhisar · Answer

LOL

abhisar · Answer

the answer will be B

abhisar · Answer

It is possible to have a male karyotype i.e XY and still have female phenotype. This happens when sry gene gets defected by mutation. Such condition is called as Swyer syndrome