Which of the Following Processes Helps Bacterial Cells Protect Their

question 15

Multiple Choice

Which of the following processes helps bacterial cells protect their own DNA from restriction enzymes (endonucleases) ?

• A) adding methyl groups to adenines and cytosines
• B) using DNA ligase to seal the bacterial DNA into a closed circle
• C) adding histones to protect the double-stranded DNA
• D) forming "sticky ends" of bacterial DNA to prevent the enzyme (endonuclease) from attaching

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Definitions:

Median

A statistical measure representing the middle value in a set of data, dividing it into two equal halves.

Distribution of Scores

The way in which a set of scores is spread out across the possible values, which can be depicted in a graph.

Correlation Between Two Variables

A measure indicating the extent to which two variables change together, showing the strength and direction of their relationship.

Positive Correlation

A relationship between two variables where both either increase or decrease together, indicating a direct association.