Is there a test adults can get to tell them what their sex chromosomes are, e.g. to know if they're an XX despite having male genitalia, or if they're XXY women, or any other non-binary possibility? [more inside]
posted by anonymous on Feb 27, 2013 - 17 answers

Gag gift for the head of a major genetics department, any ideas? [more inside]
posted by greatgefilte on Nov 27, 2007 - 21 answers

Are there really such things as "scars on chromosomes" and "X vs. Y" 'wars' between the male- and female-determining genes? [more inside]
posted by rleamon on May 8, 2005 - 15 answers