You are studying two strands of DNA.  They have exactly the same length, but the first one has a very high G + C/A + T ratio of 3.4.  The second DNA strand has a more moderate G + C/A + T ratio of 2.3.  Which of the two strands will have the highest binding affinity and why?    options:   the first strand because it contains more hydrogen bonds   the second strand because it contains more hydrogen bonds   the first strand because it contains fewer hydrogen bonds   the second strand because it contains fewer hydrogen bonds

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
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Chapter1: Biochemistry: An Evolving Science
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You are studying two strands of DNA.  They have exactly the same length, but the first one has a very high G + C/A + T ratio of 3.4.  The second DNA strand has a more moderate G + C/A + T ratio of 2.3.  Which of the two strands will have the highest binding affinity and why?

 

 options:

 

the first strand because it contains more hydrogen bonds

 

the second strand because it contains more hydrogen bonds

 

the first strand because it contains fewer hydrogen bonds

 

the second strand because it contains fewer hydrogen bonds

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