1. Base-pairing. In DNA, A bonds with T and G bonds with C through hydrogen bonds. Hydrogen bonds are weaker than chemical bonds, which allows DNA to form a double helix that can be "unzipped" in order to replicate or read the genetic information encoded in the sequence of letters. Hydrogen bonds form between hydrogen and one of three other elements: oxygen, nitrogen, or fluorine. See if you can determine how A and T (and G and C) hydrogen bond together. Hint: A-T have two hydrogen bonds while G-C have three. Try to not google for this one, and figure it out on your own!
1. Base-pairing. In DNA, A bonds with T and G bonds with C through hydrogen bonds. Hydrogen bonds are weaker than chemical bonds, which allows DNA to form a double helix that can be "unzipped" in order to replicate or read the genetic information encoded in the sequence of letters. Hydrogen bonds form between hydrogen and one of three other elements: oxygen, nitrogen, or fluorine. See if you can determine how A and T (and G and C) hydrogen bond together. Hint: A-T have two hydrogen bonds while G-C have three. Try to not google for this one, and figure it out on your own!
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
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Level 2
1. Base-pairing. In DNA, A bonds with T and G bonds with C through hydrogen bonds.
Hydrogen bonds are weaker than chemical bonds, which allows DNA to form a double helix that
can be "unzipped" in order to replicate or read the genetic information encoded in the sequence
of letters. Hydrogen bonds form between hydrogen and one of three other elements: oxygen,
nitrogen, or fluorine. See if you can determine how A and T (and G and C) hydrogen bond
together. Hint: A-T have two hydrogen bonds while G-C have three. Try to not google for this
one, and figure it out on your own!
NH₂
-N H₂N
H
adenine
NH₂
HN
H
cytosine
HN
guanine
H
thymine
H
HN
`N
H
uracil
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