Fragments of DNA Have Been Extracted from the Remnants of Extinct

question 37

Multiple Choice

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

• A) introduce into relatives, such as elephants, certain mammoth traits.
• B) clone live woolly mammoths.
• C) study the relationships among woolly 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:

Synesthesia

A condition in which stimulation of one sense also evokes another.

Different Smells

The perception of odors, which is processed by the olfactory system in the brain.

Colors

Visual perceptions that result from the way an object reflects or emits light into the eye, categorized in terms such as hue, saturation, and brightness.

Trichromatic Theory

A theory of color perception that proposes three mechanisms in the visual system, each sensitive to a certain range of wavelengths; their interaction is assumed to produce all the different experiences of hue.