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genetic disorders

What Are Genetic Disorders?
Image: iStockphoto.com/zmeel

What Are Genetic Disorders?

In genetics, spelling absolutely counts. When the chemical letters that make up genes vary, the result may be a wide range of disorders, including sickle cell disease, cystic fibrosis, Huntington's disease — even fish odor syndrome.

Take a look at some of the disorders. Then investigate the big question now facing people: "Should I find out what's in my DNA?" There's no easy answer, as you'll see.

University of Utah
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Natural Selection in Humans

Natural Selection in Humans

A gene that causes a deadly disease must be broken, right? Wrong. It turns out the gene responsible for sickle cell disease has spread to millions of people because it saves lives. Take a look at Tony Allison's work. More...

Profile
Howard Hughes Medical Institute
Screening Embryos for Disease

Screening Embryos for Disease

In the past, some people were taking a chance if they had kids. Now they don’t have to worry about passing along disease genes. But is it right to select one embryo while disposing of another? More...

Article
NPR
23andMe: What’s Really Wrong with Personal Genetic Tests

23andMe: What’s Really Wrong with Personal Genetic Tests

Why did the government stop a company from analyzing people’s genes and telling them if they had an increased risk for many disorders? More...

Article
LiveScience
Genetic Testing and Disease: Would You Want to Know?

Genetic Testing and Disease: Would You Want to Know?

In rare cases, people inherit a gene that dooms them to getting a deadly disease. Don't miss this video by a girl who may have such a gene. Read the article for the bigger picture. More...

Video
USA Today
How Genetic Disorders Are Inherited

How Genetic Disorders Are Inherited

You have to be unlucky in a number of ways before a disease-causing gene in your parent or grandparent causes a disease in you. More...

Interactive
Mayo Clinic
A Gene for Fish Odor

A Gene for Fish Odor

Not all genetic disorders are deadly. One just makes you smell like rotting fish. At least sufferers can now prove it’s not their fault. More...

Article
NOVA/PBS
Chromosome Image Gallery

Chromosome Image Gallery

Genes have been linked to many diseases, as these images show. But remember: In most cases, lifestyle and environment also have a big say in whether a person with these genes gets sick. More...

Images
Oak Ridge National Laboratory
Fragile X Syndrome

Fragile X Syndrome

It's the most common cause of inherited intellectual disability, but what is Fragile X Syndrome? See how a gene goes wrong. More...

Video
Centers for Disease Control and Prevention
Gene-Mapping Solves California Twins’ Mysterious Illness

Gene-Mapping Solves California Twins’ Mysterious Illness

Sometimes, finding a gene responsible for a disorder leads immediately to a life-saving treatment — as you’ll see in this article and video about teen twins who got very, very lucky.

More...

Video
CBS News
Spotlight on Neurogenetics

Spotlight on Neurogenetics

Genes rarely tell you what your future holds, only what it may hold. Explore what it's like to work with or as a genetic counselor. More...

Profile
University of Michigan
The Basics on Genes and Genetic Disorders

The Basics on Genes and Genetic Disorders

Like all human beings, you're a mutant. You have genes with mutations. Find out what that means here. More...

Article
TeensHealth
Your Genes, Your Health

Your Genes, Your Health

Explore a range of genetic disorders, including Down syndrome, hemophilia, and Alzheimer's disease. The menu is on the left. At the bottom of most pages, links lead to basic ideas in genetics. More...

Interactive
Cold Spring Harbor Laboratory

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