e d g e - education for disability and gender equity

Biology
CONTENTS

GENETIC DISORDERS
1 Intro
2 Single gene disorders
3 Additional chromosomes
   
4 Activity
 
5 Resources
   
SPINAL CORD INJURY
1 Intro
2 Spinal cord and vertebrae
3

Effects of SCI

   
4 Activity
   
5 Resources

GENETIC DISORDERS

2. Single gene disorders

Some disorders result when a mutation causes the product of a single gene to be altered or missing. An example of this kind of disorder is sickle-cell anemia. Mutations in the beta-globin gene cause blood cells to become distorted and take on a sickle shape. Normal  blood cell - look likes a donut

A normal blood cell is round, kind of shaped like a donut without the hole cut completely through.  Sickle cell - is sickle shapedWhen the cells have this distorted shape, they can't travel through the blood vessels easily and get clogged in the narrow passages.

Examples of single gene disorders are: sickle-cell anemia, cystic fibrosis, Duchenne muscular dystrophy and Marfan syndrome. (Genetic Science Learning Center, University of Utah).

Profiles of people with:
Sickle-cell anemia
Marfan syndrome

(next section - 3. Additional Chromosomes)


BACK arrow BACK
NEXT arrow

PhysicsGovernmentResearchHelp