Genetic Disorders

A genetic disorder is an abnormal condition that a person inherits through genes or chromosomes?

• True
• False

Some genetic disorders are caused by what?

• alleles
• Mutations in the DNA of genes
• Phenotype
• Genotype

Other disorders are caused by changes in the overall structure or number of what?

• Alleles
• Genes
• Chromosomes

Cystic fibrosis is a genetic disorder in which the body produces abnormally thick ______ in the lungs and intestines?

• Skin
• Muscle
• Blood
• Mucus

Cystic fibrosis is caused by a recessive allele on two chromosomes?

• True
• False

What disease affects hemoglobin a protein in red blood cells that carry oxygen?

• Down Syndrome
• Cystic Fibrosis
• Sickle-Cell
• Hemophilia

With Sickle-Cell when oxygen concentrations are low, the red blood cells people with this disease have unusual sickle shape?

• True
• False

Sickle-Shaped red blood cells clog blood vessels and don't carry as much oxygen as normal cells?

• True
• False

What genetic disorder is when a person's blood clots very slowly or not at all?

• Down Syndrome
• Hemophilia
• Cystic Fibrosis
• Sickle-Cell

In what disorder does a person have an extra copy on its 21 chromosome?

• Down Syndrome
• Sickle-Cell
• Hemophilia
• Cystic Fibrosis