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Biochemistry

Study Pack

Set 4 Nucleic Acids

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Question 1

(Multiple Choice)

Free
Which of the following is correctly paired?

A)adenine: pyrimidine
B)RNA: ribose containing nucleic acid
C)thymine: purine
D)uracil: purine
E)DNA: ribose containing nucleic acid

Answer

Question 2

(Multiple Choice)

Free
Which of the following describes the directionality seen in nucleic acids?

A)most polynucleotides have an unreacted 5' hydroxyl group
B)all polynucleotides have an unreacted 2' hydroxyl group
C)most polynucleotides have a phosphate group on the 5' end
D)sequences of polynucleotides are generally written from 3' on the left to 5' on the right
E)none of the above

Answer

Question 3

(Multiple Choice)

Free
Based on the following,which is true regarding the acid/base properties of guanine? Based on the following,which is true regarding the acid/base properties of guanine?   A)at physiological pH,guanine will be positively charged B)at physiological pH,guanine will be negatively charged C)at physiological pH,guanine will be neutral D)at physiological pH,guanine will be a very effective buffer against base E)at physiological pH,guanine will be a very effective buffer against acid

A)at physiological pH,guanine will be positively charged
B)at physiological pH,guanine will be negatively charged
C)at physiological pH,guanine will be neutral
D)at physiological pH,guanine will be a very effective buffer against base
E)at physiological pH,guanine will be a very effective buffer against acid

Answer