If a Circular DNA Containing No Supercoils Is Incubated with Ethidium

question 28

Multiple Choice

If a circular DNA containing no supercoils is incubated with ethidium bromide

• A)the number of twists will increase,positive supercoils will develop,and the linking number will remain the same.
• B)the number of twists will decrease,positive supercoils will develop,and the linking number will remain the same.
• C)the number of twists will increase,negative supercoils will develop,and the linking number will remain the same.
• D)the number of twists will decrease,negative supercoils will develop,and the linking number will remain the same.
• E)the linking number will be altered,and both the writhing number and twist will adjust accordingly.

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Definitions:

Tumor Tissue

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A procedure where doctors use specialized instruments to view and operate on the internal organs and vessels of your body, specifically focusing on the bladder (in the case of cystoscopy).

Clean Catch Midstream

A urine collection method minimizing contamination, involving cleaning the genital area, then collecting urine midstream in a sterile container.

Straight Catheter

A tube designed for single-use insertion into the bladder to drain urine, often used in medical settings for patients unable to urinate naturally.