Hammerhead Ribozyme

question 17

Multiple Choice

Hammerhead ribozyme

• A)contains a catalytic core with a Fe²⁺ at its center.
• B)utilizes hydrogen bonding to position itself favorably for nucleophilic attack.
• C)enhances the rate of cleavage of itself by a factor of five.
• D)A and C
• E)B and C

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Definitions:

Sympathetic Nervous System

A part of the autonomic nervous system that activates the body's fight-or-flight response.

Adrenal Medulla

The inner part of the adrenal glands that secretes adrenaline and noradrenaline, hormones involved in the body's stress response.

Catecholamines

A group of neurotransmitters, including dopamine, norepinephrine, and epinephrine, that are involved in the body's response to stress.

Fight-Or-Flight

A physiological response to perceived threatening situations, preparing the body to either confront or flee from the threat.