The Work of Bartel's Group on the Ribozyme RNA Replicase

question 4

Multiple Choice

The work of Bartel's group on the ribozyme RNA replicase supports which conclusion?

• A) An RNA world could produce molecules that could self-replicate.
• B) RNA molecules with variable characteristics could catalyze protein synthesis.
• C) Ribozymes had to be present in the first cells to generate copies of the genetic material
• D) Ribozymes were produced randomly through natural selection.

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Definitions:

James-Lange Theory

A theory of emotion proposing that emotional experience is the result of physiological responses to external stimuli.

Autonomic Nervous System

The part of the nervous system that involuntarily controls the functions of internal organs, including the heart, stomach, and glands.

Schachter And Singer Theory

A theory suggesting that emotions result from a combination of physiological arousal and the interpretation of that arousal based on environmental cues.

Autonomic Nervous System

The part of the nervous system that controls involuntary actions of the body, such as heart rate, digestion, and respiratory rate.