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:

Physical Dependence

A physiological state of adaptation to a substance, resulting in withdrawal symptoms when that substance is reduced or removed.

Activation-Synthesis Hypothesis

Premise that states that dreams are created by the higher centers of the cortex to explain the activation by the brain stem of cortical cells during REM sleep periods.

Sleep Deprivation

The condition of not having enough sleep, which can lead to a range of psychological and physical problems, including impaired judgment, mood swings, and reduced cognitive performance.

Memory

The cognitive process that involves encoding, storing, and retrieving information.