non-disjunction disorders Flashcards
1
Q
down syndrome
A
a trisomy on chromosome 21, causes development and intellectual disabilities, chances increase if mother is 40 or over
2
Q
Turner Syndrome
A
one missing x chromosome, does not reach sexual maturity, fetuses tend to be miscarried before the 20th week of pregnancy
3
Q
Klinefelter Syndrome
A
Two x, one Y chromosome, usually sterile and exhibits feminine characteristics
4
Q
Patau Syndrome
A
Trisomy on chromosome 13, often live a few months, major development problems in bran and kidney and heart
5
Q
Edwards Syndrome
A
Trisomy on chromosome 18, many organ systems defective, most fetuses die before birth
