Question

what is the sex chromosome in a gay is it XX or XY​

Answer 1

Answer:

There is an extra copy of chromosome XXY, this is an disorder.

Answer 2

Chromosomes decide biological sex and not the sexuality.

'Gay' is a sexuality.

So a gay person can either have XX or XY

If the person has XX chromosomes then they are biological female

If the person has XY chromosomes then they are biological male

and either of them can be Gay