Psych 1 Flashcards
(47 cards)
Huntington protein codes for what AA
Glutamate
Huntington’s chromosome
4
3 letter repeat for Huntington’s
CAG
Huntington’s has death and increase in what NTs?
Death of ACh and GABA
Incr dopamine
Another term for Fragile X
Martin-Bell syndrome
3 letter repeat for fragile x
CGG
First and second leading cause of mental retardation
1) Down syndrome
2) Fragile X
Neurofibromatosis 1 chromosome
17
NF1 gene product
Neurofibromin (Tumor suppressor of Ras)
3 major physical symptoms of NF1
Neurofibromas
Cafe au lait spots
Lisch nodules
Psych symptoms of NF1
Hyperactive
Impulsive
Distractible
NF2 chromosome
22
Trisomy 21 main cause (mechanism)
Nondisjunction in meiosis 1
What is overproduced in Down syndrome
Beta amyloid
Down syndrome has predisposition for _____ later in life
Dementia (Alzheimer’s type)
Prader Willi genetic cause
Paternal deletion chromosome 15
Prader Willi clinical features
Hyperphagia/obesity
Short
Small hands and feet
Rage
Angelman genetic cause
Maternal deletion chromosome 15
Clinical features of Angelman
Gait ataxia
Increased seizures
Happy puppet syndrome
Klinefelter genetic cause
Extra chromosomes in males caused by advanced paternal age
Clinical features of Klinefelter
Hypogonadism Scant body hair Learning difficulties Antisocial Delayed speech Tall
Turner syndrome genetic cause
Lose an X
Clinical features of Turner
Short Low ears Webbed neck Shield chest Congenital heart defects Ovarian streaks
Lesch-Nyhan genetic cause
Long arm of X