If a Mutation Prevents the Formation of the Antiterminator 2+3

question 14

Multiple Choice

If a mutation prevents the formation of the antiterminator 2+3 loop in the trp operon, what would be the effect?

• A) transcription only when tryptophan is absent
• B) transcription only when tryptophan is present
• C) constitutive attenuation of transcription
• D) constitutive transcription
• E) no effect, as 2+3 loop has no function

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Definitions:

Region of Rejection

The range of values in hypothesis testing that, if the test statistic falls within, leads to the rejection of the null hypothesis.

Probability (p)

The likelihood of a specific event or outcome occurring, expressed as a number between 0 and 1.

Hypothesis Testing

A statistical method used to make inferences or decisions about population parameters based on sample data, often involving testing an assumption or claim.

Research Hypothesis

A statement positing a relationship between variables or indicating differences among groups, which the research is designed to test.