Question 1

Knowledge about the tautomeric forms of the bases of nucleic acids is needed

Accepted Answer

A)  to understand H-bonding between the complementary bases
B)  to understand how the bases are linked to ribose.
C)  to understand how bases are linked to deoxyribose.
D)  to understand the ability of nucleotides to act as energy carriers.
E)  to distinguish the 5'-end of a DNA strand from the 3'-end.

Question 2

Nucleoside triphosphates are useful for energy transfer because the phosphoanhydride bonds are relatively ______.

Accepted Answer

A)  stable
B)  high energy
C)  biocompatible
D)  large
E)  low energy

Question 3

This is the structure of adenine. 
a.Is adenine a purine or a pyrimidine?
b.Which base does adenine base-pair (H-bond)with in DNA?
c.What is the name of the molecule that is composed of adenine linked to the C1' of ribose?
d.Indicate on the drawing through which atom adenine is connected to ribose or deoxyribose.
e.Indicate on the drawing which groups on adenine are involved in base-pairing or H-bonding with its complementary base.

Accepted Answer

a.purine
b. thymine
...

Question 4

Matching
-Nucleic acids are composed of nucleotides that are linked by ______ linkages.

Accepted Answer

A)  diploid
B)  phosphodiester
C)  probe
D)  pyrimidine
E)  intronsF) cloningG) transformedH) exonsI) ampicillinJ) autoradiographyK) chain-terminatorL) purineM) ester

Question 5

Nucleotides contain one or more phosphate groups that are usually attached to the:

Accepted Answer

A)  C3 ′^\prime′  or C5 ′^\prime′  atoms
B)  C3 or C3 ′^\prime′  atoms
C)  C5 or N3 atoms
D)  C1 ′^\prime′  or N3 atoms
E)  none of the above

Question 6

A double stranded DNA fragment contains 12% adenine residues.Calculate the percentage cytosine residues.

Accepted Answer

A)  12%
B)  24%
C)  38%
D)  50%
E)  78%

Question 7

Which of the following bases is not present in RNA?

Accepted Answer

A)  
B)  
C)  
D)  
E)

Question 8

Matching
-Eukaryotic genes often contain regions that are transcribed and later excised from the RNA, called ______.

Accepted Answer

A)  diploid
B)  phosphodiester
C)  probe
D)  pyrimidine
E)  intronsF) cloningG) transformedH) exonsI) ampicillinJ) autoradiographyK) chain-terminatorL) purineM) ester

Exam 3: Nucleotides, Nucleic Acids, and Genetic Information

Knowledge about the tautomeric forms of the bases of nucleic acids is needed

Correct Answer
verified

A double stranded DNA fragment contains 12% adenine residues.Calculate the percentage cytosine residues.

Correct Answer
verified

Which of the following bases is not present in RNA?

Correct Answer
verified

Nucleotides contain one or more phosphate groups that are usually attached to the:

Correct Answer
verified

Nucleoside triphosphates are useful for energy transfer because the phosphoanhydride bonds are relatively ______.

Correct Answer
verified

Correct Answer
verified
a.purine
b. thymine
...
View Answer

Matching -Eukaryotic genes often contain regions that are transcribed and later excised from the RNA, called ______.

Correct Answer
verified

Matching -Nucleic acids are composed of nucleotides that are linked by ______ linkages.

Correct Answer
verified

Exam 3: Nucleotides, Nucleic Acids, and Genetic Information

Knowledge about the tautomeric forms of the bases of nucleic acids is needed

Correct AnswerverifiedShow Answer

A double stranded DNA fragment contains 12% adenine residues.Calculate the percentage cytosine residues.

Correct AnswerverifiedShow Answer

Which of the following bases is not present in RNA?

Correct AnswerverifiedShow Answer

Nucleotides contain one or more phosphate groups that are usually attached to the:

Correct AnswerverifiedShow Answer

Nucleoside triphosphates are useful for energy transfer because the phosphoanhydride bonds are relatively ______.

Correct AnswerverifiedShow Answer

Correct Answerverifieda.purineb. thymine...View AnswerShow Answer

Matching -Eukaryotic genes often contain regions that are transcribed and later excised from the RNA, called ______.

Correct AnswerverifiedShow Answer

Matching -Nucleic acids are composed of nucleotides that are linked by ______ linkages.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
a.purine
b. thymine
...
View Answer

Correct Answer
verified

Correct Answer
verified