A Bacterium Inherits a Mutation That Renders Its Topoisomerase Enzyme

question 5

Multiple Choice

A bacterium inherits a mutation that renders its topoisomerase enzyme nonfunctional. What phenotype would you expect to see in this bacterium?

• A)The cell would accumulate broken DNA because overwinding cannot be corrected, so the cell would be unable to replicate and would die.
• B)The cell would accumulate supercoiled DNA, but otherwise it would be perfectly normal.
• C)The cell would accumulate relaxed DNA, which would make DNA replication and cell division highly disorganized and lead to cell death.
• D)The cell would accumulate relaxed DNA, but otherwise it would be perfectly normal.
• E)The cell would be unaffected because bacteria have many different topoisomerases that are involved in replication.

Distinguish between Classical Test Theory and Item Response Theory and their implications for test construction and evaluation.

Comprehend the importance of cross-cultural fairness and practicality in testing and assessment.

Understand the significance of content, concurrent, and construct validity in the evaluation of test effectiveness.

Recognize the role of correlation in assessing the relationship between test scores and other variables.

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