Fragments of DNA Have Been Extracted from the Remnants of Extinct

question 31

Multiple Choice

Fragments of DNA have been extracted from the remnants of extinct wooly mammoths, amplified, and sequenced. These can now be used to

• A)introduce into relatives, such as elephants, certain mammoth traits.
• B)clone live wooly mammoths.
• C)study the relationships among wooly mammoths and other wool-producers.
• D)understand the evolutionary relationships among members of related taxa.
• E)appreciate the reasons why mammoths went extinct

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Definitions:

Concentration Gradient

A concentration gradient is a variation in the concentration of a substance across a space or a membrane, leading to the movement of particles from an area of higher concentration to an area of lower concentration.

Expend Energy

The act of using biological or mechanical power for physical activities, processes, or to accomplish tasks.

Cell

The basic structural and functional unit of life, which consists of living material enclosed by a membrane.

Acetyl CoA

A molecule that plays a central role in metabolism, linking the glycolysis and citric acid cycle pathways.