The Most Reasonable Explanation for the Fact That Disorders Such

question 21

Multiple Choice

The most reasonable explanation for the fact that disorders such as cystic fibrosis do not disappear from the human population is that

• A) it is an autosomal dominant disease.
• B) new medical procedures allow most sufferers to live long enough to pass the gene on to offspring.
• C) heterozygous carriers have one normal gene that masks the harmful gene.
• D) the gene keeps mutating back to the harmful form.
• E) persons with cystic fibrosis are made stronger by their affliction.

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Definitions:

Bone Loss

The decrease in bone density and mass, leading to weakened bones and increasing the risk of fractures.

Testosterone

The primary male sex hormone responsible for development and regulation of the male reproductive system and secondary sex characteristics.

Alzheimer's Disease

A progressive neurological disorder characterized by memory loss, cognitive decline, and personality changes, stemming from brain cell damage.

Arthritis

A condition characterized by inflammation of the joints, leading to pain and stiffness.