Genetic Disorders

What is a genetic disorder?

• a disease caused by abnormalities in an individual’s genetic material

• A disease that can spread from infected people, infected animals, contaminated objects, and contaminated food, soil, or water.

• A diseases that occur due to lack of nutrients over a long period

• A disease that causes a disturbance or dysfunction in behavior, thoughts, or emotions that causes significant distress or impairment

click all that are classified as a genetic disorder

• Single-gene

• Multifactorial

• Chromosomal

• Mitochondrial

True or false: A Single gene disorders are caused by changes or mutations that occur in the DNA sequence of one gene.

• True

• False

True or false: Genetic testing looks at genotype to determine if someone has a genetic disorder, will develop one, or is a carrier.

• True

• False

True or False: Multifactorial disorders are caused by a combination of environmental factors and mutations in multiple genes.

• False

• True

How many chromosomes are in the human body?

• 2

• 44

• 46

• 56

True or False: Do chromosomes carry genetic information

• False

• True

A mitochondrial disorder is caused by mutations in non chromosomal DNA of mitochondria.

• True

• False

Mitochondrial DNA is unique in that it is passed solely from

• father to child

• Mother to child

• grandparent to grandchild

True or false: Carrier screening determines whether an individual carries a copy of an altered gene for a particular recessive disease even though they do not show the trait phenotypically.

• True

• False