This preview shows page 1. Sign up to view the full content.
Unformatted text preview: y cells have 47 instead of 46 chromosomes. An atypical egg with two X chromosomes is fertilized by a Y bearing sperm. Klinefelter's Syndrome In Klinefelter's Syndrome male structures begin to form but do not complete development because of the extra X chromosomes. Males are born with undersized testes and penises. Chromosomal Errors In XXX females development of internal and external reproductive organs is normal. They have a small increased risk of learning disabilities and of menstrual disorders. Egg = 22 (auto.) + XX Sperm = 22 (auto.) + X ___________________ Fert. = 22 (auto.) + XXX (47 chromosomes) Chromosomal Errors Egg = 22 (auto.) + X Sperm = 22 (auto.) + YY ___________________ Fert. = 22 (auto.) + XYY (47 chromosomes) (Super) XYY males develop normal internal and external reproductive organs. They have an unusually masculine appearance (e.g., are exceptionally tall). They also have problems with acne, a furrowed brow, and an increased chance of infertility and learning disabilities. Supermale (XYY) Supermales were thought to be at risk for antisocia...
View Full Document
This note was uploaded on 05/03/2010 for the course PSY 220 taught by Professor Ashcraft during the Spring '10 term at Clarion.
- Spring '10