How might the underwinding of a B-DNA helix facilitate or stabilize the formation of Z-DNA? Strands of underwound DNA spontaneously separate and reform as Z-DNA. Underwound DNA can provide a local region of unwound DNA, which allows the B-DNA to Z-DNA shift. DNA underwinding stores free energy, which facilitates the B-DNA to Z-DNA transition. Underwinding decreases Lk, which makes Z-DNA formation more favorable. Underwinding B-DNA dehydrates the polymer, forming Z-DNA.

How might the underwinding of a B-DNA helix facilitate or stabilize the formation of Z-DNA? Strands of underwound DNA spontaneously separate and reform as Z-DNA. Underwound DNA can provide a local region of unwound DNA, which allows the B-DNA to Z-DNA shift. DNA underwinding stores free energy, which facilitates the B-DNA to Z-DNA transition. Underwinding decreases Lk, which makes Z-DNA formation more favorable. Underwinding B-DNA dehydrates the polymer, forming Z-DNA.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 23QP: How does DNA replication occur in a precise manner to ensure that identical genetic information is...

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Is the entire strand of DNA template strand of DNA transcribed at one time? Explain answer?
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explains how the underwinding of a B-DNA helix might facilitate or stabilize the formation of Z-DNA
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