A Scientist Discovers a DNA-Based Test for One Allele of a Particular

question 7

Multiple Choice

A scientist discovers a DNA-based test for one allele of a particular gene. This and only this allele, if homozygous, produces an effect that results in death at or about the time of birth. Of the following, which is the best use of this discovery?

• A) Screen all newborns of an at-risk population.
• B) Design a test for identifying heterozygous carriers of the allele.
• C) Introduce a normal allele into deficient newborns.
• D) Follow the segregation of the allele during meiosis.
• E) Test school-age children for the disorder.

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Definitions:

Potassium Ions

Positively charged atoms of potassium that play crucial roles in cellular and electrical functions within the body.

Calcium Ions

Positively charged atoms of calcium that play crucial roles in various biological processes, including muscle contraction, nerve function, and blood clotting.

Teeth Blood Supply

The vascular system that provides nutrients and oxygen through the arteries and veins to maintain the health of teeth and support their function.

Lingual Artery

An artery that supplies blood to the tongue, crucial for its movements and function.