A Quiz Consists of 10 True or False Questions

question 9

Multiple Choice

A quiz consists of 10 true or false questions. To pass the quiz a student must answer at least eight questionscorrectly. If the student guesses on each question, what is the probability that the student will pass the quiz?

• A) 0.055
• B) 0.8
• C) 0.20
• D) 0.08

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Definitions:

Active Repressor Protein

A protein that binds to specific DNA sequences to inhibit the transcription of certain genes, controlling gene expression.

Inactive RNA Polymerase

An RNA polymerase enzyme in a resting state that is not involved in the transcription of DNA into RNA.

Negative Control

An experiment or part of an experiment where no response is expected, serving to highlight the effect of the experimental treatment.

Repressible Genes

Genes whose expression can be decreased or turned off by the presence of a specific molecule.