RNA Polymerase Needs a Subunit to Initiate Transcription That Is

question 26

Multiple Choice

RNA polymerase needs a subunit to initiate transcription that is not needed for transcript elongation.What is the subunit?

• A)Mg²⁺
• B)rho
• C)sigma
• D)the holoenzyme

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Definitions:

Group Selection

Selection arising from variation in fitness among groups.

Reproductively Altruistic

Behavior by an individual that reduces its own reproductive success while boosting the reproductive success of others.

Evolutionary Trade-Off

Situations in which one trait is favored by natural selection, but at the expense of another trait, often due to resource limitations.

Learning Imposes

The process by which acquiring new, or modifying existing, knowledge or behaviors involves certain constraints or requirements.