I don't know much about this but I do know that chromosomes are inside a cell. So the cell of the sperm is what carries the Chromosone.
The chromosome is xy.
If two fraternal twins have the XY sex chromosomes, they will be male.
About half of us DO have an XY chromosome. Males. XX chromosomes are female.
Two aspects of biological sex are chromosomes (XX for female, XY for male) and reproductive anatomy (ovaries and uterus for female, testes and penis for male).
46 chromosomes or 23 pairs of chromosomes where 44+xx or 44+xy xx are girls xy are boys
XY chromosomes SDT
Y chomozomes, I think. It says on Wikipedia.
XY Chromosomes = Males XX Chromosomes = Females
xy chromosomes mostly fall on male gender.
The sex chromosomes of a man are XY (vs. XX for a woman).
xy
XY