Deck 25: Nucleic Acids and Protein Synthesis

Question 1

Which of the following is a nucleotide base used in DNA?

A) Adenine
B) Guanine
C) Cytosine
D) Thymine
E) all of the above
F) none of the above

Answer 1

all of the above

Question 2

Which of the following are purine bases?

A) Adenine
B) Guanine
C) Cytosine
D) Thymine
E) Uracil
F) all of the above
G) none of the above
H) a and b
I) c, d and e

Answer 2

a and b

Question 3

Which of the following are pyrimidine bases?

A) Adenine
B) Guanine
C) Cytosine
D) Thymine
E) Uracil
F) all of the above
G) none of the above
H) a and b
I) c, d and e

Answer 3

c, d and e

Question 4

___ contain heterocyclic bases attached to a ___ that has a ___ attached to one of the OH's.

A) nucleosides, 5 carbon monosaccharide, phosphate ion
B) nucleotides, 5 carbon monosaccharide, phosphate ion
C) nucleosides, 6 carbon monosaccharide, phosphate ion
D) nucleotides, 6 carbon monosaccharide, phosphate ion

Question 5

___ are formed by removing a ___ from a nucleotide.

A) purines, deoxyribose ring
B) nucleic acids, ribose ring
C) DNA, nucleic acid
D) nucleosides, phosphate

Question 6

Which of the following shows 3? phosphorylation?

A) I
B) II
C) III
D) IV

Question 7

The first step in protein synthesis takes place in the ___ and is called ___ . During this first step genetic information is transcribed onto ___ .

A) cytoplasm, translation, ribosomal RNA
B) cytoplasm, transcription, transfer RNA
C) cell nucleus, transcription, messenger RNA
D) cell nucleus, translation, ribosomal RNA

Question 8

The second step in protein synthesis takes place in
The ___ . In this step, ___ catalyzes the formation of amide bonds between amino acids to create the polypeptide chain. The individual amino acid units are brought to the growing peptide chain by ___ .

A) cytoplasm, transfer RNA, ribosomal RNA
B) cytoplasm, ribosomal RNA, transfer RNA
C) cell nucleus, transfer RNA, ribosomal RNA
D) cell nucleus, ribosomal RNA, transfer RNA

Question 9

What tripeptide would form from the following snippet of DNA sequence, AUGAACAAAUCGUGA?

A) Methionine-Asparagine-Lysine
B) Methionine-Aspartic Acid-Leucine
C) Aspartic Acid-Lysine-Leucine
D) Asparagine-Lysine-Serine

Question 10

What tripeptide would form from the following snippet of DNA sequence, AUGACAGGAGACUAG?

A) Tyrosine-Glutamine-Asparagine
B) Threonine-Glycine-Aspartic Acid
C) Tyrosine-Glutamic Acid-Asparagine
D) Threonine-Glycine-Asparagine