ich of the following pieces of DNA is going to be easier to separate into single stranded molecules using heat (ie, have a lower melting point), which breaks hydrogen bonds? Why? 1. 5’ ATTTTCCGTAAT 3’ 3’ TAAAAGGCATTA 5’ 2. 5’ ACGGTTTACCGG 3’ 3’ TGCCAAATGGCC 5’ A) 2; it has more C-G pairs which are connected by three hydrogen bonds instead of two, so they are easier to break.
ich of the following pieces of DNA is going to be easier to separate into single stranded molecules using heat (ie, have a lower melting point), which breaks hydrogen bonds? Why? 1. 5’ ATTTTCCGTAAT 3’ 3’ TAAAAGGCATTA 5’ 2. 5’ ACGGTTTACCGG 3’ 3’ TGCCAAATGGCC 5’ A) 2; it has more C-G pairs which are connected by three hydrogen bonds instead of two, so they are easier to break.
Chapter8: Dna Structure And Function
Section: Chapter Questions
Problem 2SA: What are the base-pairing rules for DNA? a. A-G, T-C c. A-T, G-C b. A-C, T-G d. A-A, G-G, C-C, T-T
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Question
Which of the following pieces of DNA is going to be easier to separate into single stranded molecules using heat (ie, have a lower melting point), which breaks hydrogen bonds? Why?
1. 5’ ATTTTCCGTAAT 3’
3’ TAAAAGGCATTA 5’
2. 5’ ACGGTTTACCGG 3’
3’ TGCCAAATGGCC 5’
A) 2; it has more C-G pairs which are connected by three hydrogen bonds instead of two, so they are easier to break.
B) 1; it has more A-T pairs which are connected by one hydrogen bond instead of two, so they are easier to break.
C) 2; it has more C-G pairs which are connected by two hydrogen bonds instead of three, so they are easier to break.
D)1; it has more A-T pairs which are connected by two hydrogen bonds instead of three, so they are easier to break.
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