Which of the following will NOT cause the linking number of a double-stranded DNA to change? removing turns single-stranded breaks adding turns denaturing All of these events will change the linking number.
Added by Troy C.
Step 1
** Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 97 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The formation of cruciforms in relaxed, circular DNA will be associated with what other effect? A) a change in linking number B) a change in superhelical density C) the formation of negative supercoils D) All of these effects would occur. E) None of these effects would occur.
Sri K.
In the presence of a eukaryotic condensin and a type II topoisomerase, the $L k$ of a relaxed closed-circular DNA molecule does not change. However, the DNA becomes highly knotted. (FIGURE CAN'T COPY)Formation of the knots requires breakage of the DNA, passage of a segment of DNA through the break, and religation by the topoisomerase. Given that every reaction of the topoisomerase would be expected to result in a change in linking number, how can $L k$ remain the same?
Bryan V.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD