A | B |
sex linked trait | trait that is carried only on the X chromosome |
karotype | chart of pairs of chromosome |
trisomy | having an extra chromosome, 47 instead of 46 |
non disjunction | when chromosomes don't separate correctly |
monosomy | one less chromosome, 45 instead of 46 |
Turner syndrome | type of monosomy one less chromosome |
autosomes | all the chromosome EXCEPT the sex chromosomes |
pedigree | used to study traits over many generations |
phenotype | what the world see, outward appearence |
genotype | what is in your genetic makeup |
huntington disease | autosomal dominant |
cystic fibrosis | recessive, need two defective genes |
amniocentesis | collection of cells used to determine if an unborn baby has a disability done one women over 35 |
PKU | cannot digest phenylalanine |
dwarfism | lack of growth hormone |
albinism | lack of pigment in eyes and skin |
hemophilia | sex linked recessive |
Tay Sachs | buildup of lipids in the brain - early death |
cystic fibrosis | 1 out 20 americans of northeastern European descent are carriers |
Down syndrome | trisomy 21 |
familial hypercholesterolemia | causes heart attacks at a young age |
sickle cell anemia | abnormal red blood cells |
klinefelter disease | individual with XXY |
Lou Gehrig's disease ALS | degeneration of nerve cells sets in around age 50 |