✓ - Must have both recessive genes to inherit
✓ - Example: Two parent have brown eyes (dominant, represented by B) and both
have the recessive gene for blue eyes (represented by b). Offspring must inherent
both bb's to exhibit blue eyes. If they have even one B, they will have brown eyes;
the dominant gene
What are examples of autosomal-recessive disorders (both genes need defect)?
What are examples of Autosomal-Dominant Disorders (Only one gene needed
for defect)?
✓ - Huntington's Disease
✓ - Hypercholesterolemia
What are some risk factors for birth defects?
✓ - Maternal age greater than 35 years
✓ - History of genetic disorders
✓ - Multiple miscarriages
When is perinatal genetic testing done?
✓ - Done before pregnancy if there is a history of infertility.
✓ - Can also be done during pregnancy via blood test is a person is more prone to
pass on genetic anomalies
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