How does genetic testing work?
- Direct Testing: Screens DNA sequences
for unknown mutations, or tests specific DNA
for a known mutation
- Linkage Testing: Looks at markers
co-inherited with a disease-causing gene
- Biochemical Testing: Screens urine,
plasma,
red/white blood cells, or placental
tissue or amniocyte
samples to evaluate metabolic diseases and enzymatic
function.
- Cytogenetic Testing: Uses white blood
cells, amniocytes,
chorionic
villus samples, miscarried fetuses, and
skin biopsies to examine chromosomes
Screening/Diagnosis Support Groups Pharmacogenetics Resources Therapy
what's new Social and Ethical Implications Policy & Law Education Other States
Glossary