Under Iron-Starvation Conditions in the Cell

question 23

Multiple Choice

Under iron-starvation conditions in the cell,

• A) cytosolic aconitase binds to the 3′ UTR of the mRNA encoding the transferrin receptor.
• B) cytosolic aconitase binds to the 3′ UTR of the mRNA encoding ferritin.
• C) cytosolic aconitase blocks translation of the mRNA encoding the transferrin receptor.
• D) the mRNA encoding the transferrin receptor is cleaved by an endonuclease.
• E) All of the above.

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Definitions:

Primitive Learning

A basic form of learning that occurs early in life, often driven by instinct and the need to adapt to the environment, without the need for conscious thought.

Reflexes

Involuntary movements or actions automatically produced by the body in response to specific stimuli, serving as protective mechanisms.

Survival Value

The extent to which a trait or behavior enhances the chances of survival and reproduction of an organism.

Stand Alone

A term used to describe something that operates independently or is self-sufficient, without the need for external support.