Genetics Flashcards
1
Q
DS screening markers
A
- decreased AFP & conjugated estriol
- increased hCG & inhibin-alpha
2
Q
Edwards clinical features
A
- micrognathia
- rocker-bottom feet
- overlapping fingers
3
Q
Patau clinical features
A
- micro-ophthalmia
- cleft lip & palate
- polydactyly
4
Q
What is XERODERMA PIGMENTOSUM?
A
a congenital defect in DNA repair
5
Q
What mutation causes Acoustic Neuromas/Cerebellopontine Angle Tumors?
A
mutated merlin mapped CHRM 22q12
*Acoustic neuromas can lead to HEARING LOSS & HEADACHES
6
Q
Fragile X features
A
- 230+ CGG repeats
- prominent mandible & ears
- Macroorchidism