Genetic disorder

Down Syndrome, caused by an extra copy of chromosome 21 falls in the category of

chromosome disorders

This disease causes the body to produce thick mucus that clogs the lungs, leads to infections and blocks pancreas.

cystic fibrosis

Sickle cell disease is

recessive

The only cure for this disease is bone marrow transplant, however life can be prolonged with use of antibiotics, pain management and blood transfusion.

sickle cell disease

In how many categories can genetic disorders be classified?

3

This disease is the most common fatal genetic disease in the United States.

Cystic Fibrosis disease

This disease can be diagnosed through "sweat test".

Cystic fibrosis

This disease is caused by a single abnormal gene on chromosome 4.

Huntington's

This disease can be diagnosed by looking at blood cells under the microscope.

Sickle cell

Monogenetic disorders

are caused by a mutation in a single gene

What are genetic disorders?

disease caused by change in DNA sequence disease caused by a mutation in one gene disease caused by mutations in multiple genes disease caused by gene mutations and environmental factors

Huntington's disease is a

dominant trait

An individual can become sick with sickle cell disease in the teen years.

false

Having the BRCA1 or BRCA2 gene lowers the risk of developing breast cancer.

false

"multifactorial inheritance disorders" refer to diseases that are caused by a combination of inherited mutations in multiple genes, often acting together with environmental factors.

true

Approximately 80,000 Americans have sickle cell disease.

true

Chromosome disorders are caused by excess or deficiency of the genes located on chromosomes.

true

It is possible but rare that a monogenic disease can occur spontaneously in a child when his/her parents do not have the disease gene or there is no history of the disease in the family.

true

Sickle cell disease is caused by mutations that are inherited from the parents.

true

Some forms of cancer are inherited from parents and can occur due to environmental exposure such as cigarette smoke.

true