Based on the Interchangeability of the Nucleotide at the Third

question 19

Multiple Choice

Based on the interchangeability of the nucleotide at the third position,Francis Crick proposed that the same tRNA may be able to recognize more than one tRNA.What was his proposal called?

• A)the tRNA theory
• B)the wobble hypothesis
• C)the steric hindrance hypothesis
• D)the chemiosmotic hypothesis
• E)the endosymbiotic hypothesis

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Definitions:

Neural Signals

Electrical impulses transmitted through neurons, facilitating communication within the nervous system.

Excitatory

Referring to neurons or substances that increase the likelihood of a neuron firing, thus promoting neural activity.

Inhibitory

Describes something that restrains, blocks, or suppresses a specific action, process, or reaction in biological or chemical systems.

Limbic System

A complex system of nerves and networks in the brain, involved in basic emotions such as fear and pleasure, and drives such as hunger and sex.