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

question 16

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.Which of the following statements describes 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.

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Definitions:

Mica Crystals

Minerals characterized by their sheet-like structure and ability to split easily along flat planes, commonly found in igneous and metamorphic rocks.

Shiny Aspect

Characteristic of reflecting light, typically because of a smooth, polished surface that appears bright or glistening.

Dull Slate

A type of metamorphic rock known for its dull appearance and fine-grained texture, typically used in roofing and flooring.

Lineation

A linear arrangement of textural or structural features in rock, often indicative of the flow or movement direction during formation.