Prevalence of methicillin-resistant Staphylococci species isolated ... by Boa, Tyler T.; Rahube, Teddie O.; Fremaux, Bastien; Levett, Paul N.; Yost, Christopher K. / Journal of Environmental Health.
The X and Y chromosomes, also known as the sex chromosomes, determine the biological sex of an individual: females inherit an X chromosome from the father for a XX genotype, while males inherit a Y chromosome from the father for a XY genotype (mothers only pass on X chromosomes).
How a Babyâs Gender is Determined. Females have an XX pair of sex chromosomes, and males, an XY pair. A babyâs gender is determined by the sperm cell that fertilizes a womanâs egg.Sperm carry one sex chromosome, either a Y (male) or X (female). To better understand, letâs look at how sperm develop. babyâs gender is determined by the sperm cell that fertilizes a womanâs egg. Sperm carry one sex chromosome, either a Y (male) or X (female). To better understand, letâs look at how sperm develop.