Deck 26: The Chemistry of the Nucleic Acids

Question 1

Which of the following bases distinguish DNA from RNA?

A) adenine and thymine
B) thymine and cytosine
C) uracil and adenine
D) thymine and uracil
E) uracil and guanine

Answer 1

thymine and uracil

Question 2

Which of the following are purines?

A) adenine and thymine
B) adenine and guanine
C) cytosine and uracil
D) thymine and cytosine
E) guanine and cytosine

Answer 2

adenine and guanine

Question 3

How many hydrogen bonds exist between the thymine and adenine base pairs in double-stranded DNA?

A) 1
B) 2
C) 3
D) 4
E) 5

Answer 3

2

Question 4

The synthesis of RNA from DNA is called ____________.

A) translation
B) transcription
C) transformation
D) transmission
E) transmutation

Question 5

What is the sequence of bases in the strand of DNA that is complementary to that shown?
5'-G-T-C-A-C-3'

A) 5'-G-T-G-A-C-3'
B) 3'-G-T-G-A-C-5'
C) 5'-C-A-C-T-G-3'
D) 3'-C-A-C-T-G-5'
E) 3'-C-U-A-T-G-5'

Question 6

Which of the following bases is not found in DNA?

A) adenine
B) thymine
C) guanine
D) 5-methylcytosine
E) all of the above

Question 7

Which of the following is not a type of RNA?

A) dRNA
B) mRNA messenger-
C) rRNAribosomal-
D) tRNAtransfer-
E) All of the above are types of RNA.

Question 8

Which of the following amino acids has only one codon?

A) Arg
B) Trp
C) Tyr
D) Cys
E) Phe

Question 9

Which of the following base sequences would most likely be recognized by a restriction endonuclease?

A) AGCAGC
B) AGAGAG
C) GATATC
D) CAGGCA
E) TTGGAA