1. Genetic Disorders

2. Down’s Syndrome Disorder caused by trisomy of chromosome pair #21.
Autosomal disorder
Extra genetic information interferes with physical and mental development.

3. Duchenne Muscular Dystrophy
X-linked recessive disorder.
Caused by a mutation in the gene for the protein dystrophin.
Causes muscles to degenerate.

4. Color Blindness X-linked recessive disorder.
Inability to see specific colors.
Several types exist, all involve a deficiency in one or more of the pigments needed for color vision.

5. Normal view
Color blind

6. Cystic Fibrosis
Autosomal recessive disorder caused by a mutation in a gene that helps water move into tissues.
Causes a thick, sticky mucous that clogs airways and glands.

7. Sickle Cell Disease
Autosomal recessive disorder caused by a mutation in the gene for hemoglobin (protein used to carry oxygen in red blood cells).
Shape of red blood cells may be distorted under some conditions (become sickle-shaped).
Abnormal cells may die prematurely (causes anemia) or get stuck in blood vessels.

8. Huntington’s Disease Autosomal dominant disorder (on chromosome #4)
Causes nerve degeneration.
Symptoms do not appear until middle age.