
Originally Posted by
Vladimir
If you have a 'Y' chromozome you're a guy, period. There are certain, rare, genetic "unfortunates" out there and they may be the exception. It's REAL simple: XX=female, XY=male.
Don't forget, you can be really unlucky and wind up with an XYY combination. Article:
XYY syndrome is a rare chromosomal disorder that affects males. It is caused by the presence of an extra Y chromosome. Males normally have one X and one Y chromosome. However, individuals with this syndrome have one X and two Y chromosome. Affected individuals are usually very tall and thin. Many experience severe acne during adolescence. Additional symptoms may include antisocial or behavioral problems and learning disabilities. Intelligence is usually normal, although IQ, on average, is 10 to 15 points lower than siblings.
Bookmarks