As a result of the rotation about its six bonds, DNA can exist in a variety of forms. Determine whether the image and descriptions correspond to A-DNA, B-DNA, Z-DNA, or all three forms of DNA. A-DNA the favored form of dehydrated DNA widest helix diameter has a 23.7 Å helix diameter B-DNA most stable under physiological conditions The base pairs are nearly perpendicular compared to the plane of the helix axis and exhibit a right-handed helix. Z-DNA left-handed narrowest helix diameter HOCH₂ OH All DNA forms G pairs with C, and A pairs with T. antiparallel strands

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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As a result of the rotation about its six bonds, DNA can exist in a variety of forms. Determine whether the image and
descriptions correspond to A-DNA, B-DNA, Z-DNA, or all three forms of DNA.
A-DNA
the favored form of
dehydrated DNA
widest helix diameter
has a 23.7 Å helix diameter
B-DNA
most stable under
physiological conditions
The base pairs are nearly
perpendicular compared to the
plane of the helix axis and
exhibit a right-handed helix.
Answer Bank
Z-DNA
left-handed
narrowest helix diameter
A
HOCH2
OH
All DNA forms
G pairs with C, and A pairs
with T.
antiparallel strands
Transcribed Image Text:As a result of the rotation about its six bonds, DNA can exist in a variety of forms. Determine whether the image and descriptions correspond to A-DNA, B-DNA, Z-DNA, or all three forms of DNA. A-DNA the favored form of dehydrated DNA widest helix diameter has a 23.7 Å helix diameter B-DNA most stable under physiological conditions The base pairs are nearly perpendicular compared to the plane of the helix axis and exhibit a right-handed helix. Answer Bank Z-DNA left-handed narrowest helix diameter A HOCH2 OH All DNA forms G pairs with C, and A pairs with T. antiparallel strands
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