Fragments of DNA Have Been Extracted from the Remnants of Extinct

question 4

Multiple Choice

Fragments of DNA have been extracted from the remnants of extinct woolly mammoths, amplified, and sequenced. How can these fragments of DNA now be used?

• A) to introduce certain mammoth traits into relatives, such as elephants
• B) to clone live woolly mammoths
• C) to understand the reasons why mammoths went extinct
• D) to better understand the evolutionary relationships among members of related taxa

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Definitions:

Tranquilizers

Medications used to reduce tension or anxiety, often by depressing the central nervous system.

Barbiturates

A class of drugs that act as central nervous system depressants, often used for their sedative and anxiolytic effects.

Depressants

A category of drugs that reduce the activity of the central nervous system, leading to effects such as relaxation, sedation, and decreased alertness.

Hypnosis

A trance-like state of focused attention and increased suggestibility, with diminished peripheral awareness, often used for therapeutic purposes.