(06-28-2023, 08:04 PM)Freija Wrote:(06-28-2023, 06:30 PM)dbcowboy Wrote: So I guess we are in agreement that X and Y determine the sex of the individual, correct?
You won't get any argument from me if we're talking an 8th grade level of basic understanding.
In humans there are 6 common sex karyotypes: XX, XY, XXY, XXXY, & XYYY. & there are 4 rare sex karyotypes: XO, XO/XX mosaicism, XY/XXY mosacism, XXY/XXXY/XXXXY mosaicism.
In most cases, the sex of an individual is determined at birth by visual examination of the genitalia, not by karyotype testing.
Sex is also determined by the production of or the potential to produce small gametes (sperm) or large gametes (eggs).
In cases of CAIS (complete androgen insensitivity syndrome) and many with 5-alpha reductase deficiency are born with genitalia that appears female although with XY chromosomes. These (intersex) conditions are not usually discovered until puberty.
I haven't seen that much stretching since I tried on yoga pants!