Post on 31-Dec-2015
description
transcript
nondisjunction in meiosis
extra X chromosome(s) gamete has >1 sex chromosome zygote has >2 sex chromosomes
XXY/XXXY/XXYY etc.
Causes
aspermatogenesis karyotype: blood
sample WBCs separated chromosomal abnormalities (e.g. X chromosome)
Diagnosis
emotional problems/social pressure
decreased life expectancy (not definitive)
disease (osteoporosis, breast cancer etc.)
Prognosis