Unit 6 Test Review
1. Select the first three nucleotides of
the complimentary DNA strand
C C G TA
A.
B.
C.
D.
GGT
CCT
GGC
TTA
1. Select the first three nucleotides of
the complimentary DNA strand
C C G TA
A.
B.
C.
D.
GGT
CCT
GGC
TTA
DNA Base Pairing Rules
A-T
G-C
2. During transcription, what does
messenger RNA do?
A. It delivers DNA’s instructions for making
proteins to the ribosomes
B. It constructs proteins out of amino acids in
the nucleus
C. It strings together two complementary DNA
strands
D. It strings together two complementary RNA
strands
2. During transcription, what does
messenger RNA do?
A. It delivers DNA’s
instructions for
making proteins to
the ribosomes
3. The central dogma states that
information flows from
A.
B.
C.
D.
RNA to DNA to polysaccharides
DNA to RNA to proteins
RNA to DNA to proteins
DNA to polysaccharides to RNA
3. The central dogma states that
information flows from
A. DNA to RNA to proteins
4. How many amino acids are coded
for by the strand of mRNA shown
below? Assume the reading frame
begins with the first nucleotide.
CGAUAC
A. 1
B. 2
C. 3
D. 6
4. How many amino acids are coded
for by the strand of mRNA shown
below? Assume the reading frame
begins with the first nucleotide.
CGAUAC
B. 2
5. Which of the following is an
example of a mutagen?
A. Repair enzyme
B. Triglyceride
C. UV sunlight
D. Thymine
5. Which of the following is an
example of a mutagen?
A. Repair enzyme
B. Triglyceride
C. UV sunlight
D. Thymine
6. Which of the following is the correct
mRNA sequence transcribed from the
original DNA strand below?
Original DNA Strand : TACCATTAG
A.
B.
C.
D.
ATGGTAATC
AUGGUAAUC
AUGTTATTA
ATGGTATAC
6. Which of the following is the correct
mRNA sequence transcribed from the
original DNA strand below?
Original DNA Strand : TACCATTAG
B. AUGGUAAUC
RNA Base Pairing Rules
C-G
A-U
T-A
7. How many codons can be made
from 12 RNA nucleotides?
A.
B.
C.
D.
3
4
12
6
7. How many codons can be made
from 12 RNA nucleotides?
A.
B.
C.
D.
3
4
12
6
8. Which of the following is NOT a stop
codon?
A.
B.
C.
D.
UAA
UGA
UCA
UAG
8. Which of the following is NOT a stop
codon?
A.
B.
C.
D.
UAA
UGA
UCA
UAG
9. Which of the following would be the
anticodon if the this was the DNA
template  ATG CAT
A.
B.
C.
D.
UAC GUA
AUG CAU
UAG CUA
TAC GTA
9. Which of the following would be the
anticodon if the this was the DNA
template  ATG CAT
A. UAC GUA
B. AUG CAU
10. How many unique amino acids
exist?
A.
B.
C.
D.
18
15
20
40
10. How many unique amino acids
exist?
A.
B.
C.
D.
18
15
20
40
11. What is the function of transfer
RNA molecules?
A. Transport amino acids to messenger RNA
B. Provide a template for the synthesis of
messenger RNA
C. Synthesize more transfer RNA molecules
D. Transport amino acids to DNA in the nucleus
11. What is the function of transfer
RNA molecules?
A. Transport amino acids to messenger RNA
12. What does DNA stand for?
A. Deoxyribonucleic acid
B. Deoxyribose nuclear acetate
C. Diethylene nitrate acid
12. What does DNA stand for?
A. Deoxyribonucleic acid
13. During which stage of the cell cycle
is DNA copied?
A.
B.
C.
D.
Cytokinesis
Metaphase
S phase
G1
13. During which stage of the cell cycle
is DNA copied?
A.
B.
C.
D.
Cytokinesis
Metaphase
S phase
G1
14. What sugar is found in DNA?
A. Glucose
B. Ribose
C. Deoxyribose
14. What sugar is found in DNA?
A. Glucose
B. Ribose
C. Deoxyribose
15. What sugar is found in RNA?
A. Glucose
B. Ribose
C. Deoxyribose
15. What sugar is found in RNA?
A. Glucose
B. Ribose
C. Deoxyribose
16. When DNA is copied, what enzyme
connects new bases to old bases and
proofreads them?
A. Ligase
B. Helicase
C. DNA polymerase
D. RNA polymerase
16. When DNA is copied, what enzyme
connects new bases to old bases and
proofreads them?
C. DNA polymerase
17. When DNA is copied the process is
described as what?
A. Non-conservative
B. Semi-conservative
C. Conservative
17. When DNA is copied the process is
described as what?
A. Non-conservative
B. Semi-conservative
C. Conservative
18. When DNA is copied, what enzyme
unwinds the DNA molecules?
A. Ligase
B. Helicase
C. DNA Polymerase
D. RNA Polymerase
18. When DNA is copied, what enzyme
unwinds the DNA molecules?
A. Ligase
B. Helicase
C. DNA Polymerase
D. RNA Polymerase
19. DNA DNA
A. Replication
B. Transcription
C. Translation
D. Protein Synthesis
19. DNA DNA
A. Replication
B. Transcription
C. Translation
D. Protein Synthesis
20. DNA RNA
A. Replication
B. Transcription
C. Translation
D. Protein Synthesis
20. DNA RNA
B. Transcription
C. Translation
D. Protein Synthesis
21. RNA Proteins
A. Replication
B. Transcription
C. Translation
D. None of the above
21. RNA Proteins
C. Translation
22. What are the building blocks of
proteins called?
A. DNA
B. Amino acids
C. RNA
D. Lipids
22. What are the building blocks of
proteins called?
A. DNA
B. Amino acids
C. RNA
D. Lipids
23. Who are the two scientists who
built the first model of the DNA
structure?
A. Rosalind Franklin and James Watson
B. Francis Crick and James Watson
C. Mr. Hale and Mr. Harris
D. Rosalind Franklin and Francis Crick
23. Who are the two scientists who
built the first model of the DNA
structure?
A. Rosalind Franklin and
James Watson
B. Francis Crick and James
Watson
C. Mr. Hale and Mr. Harris
D. Rosalind Franklin and
Francis Crick
24. Which scientist studied DNA
crystals using x-ray diffraction?
A. James Watson
B. Francis Crick
C. Rosalind Franklin
D. Albert Einstein
24. Which scientist studied DNA
crystals using x-ray diffraction?
A. James Watson
B. Francis Crick
C. Rosalind Franklin
D. Albert Einstein
25. Weak bonds that hold nitrogen
bases together in base pairing
A. Nitrogen Bonds
B. Carbon bonds
C. Oxygen bonds
D. Hydrogen bonds
25. Weak bonds that hold nitrogen
bases together in base pairing
A. Nitrogen Bonds
B. Carbon bonds
C. Oxygen bonds
D. Hydrogen bonds
26. Process where DNA makes copies
of itself
A. Replication
B. Transcription
C. Translation
D.None of the above
26. Process where DNA makes copies
of itself
A. Replication
B. Transcription
C. Translation
D. None of the above
27. What enzyme breaks the hydrogen
bonds between nitrogen bases in DNA
before replication?
A.RNA polymerase
B.DNA polymerase
C. Helicase
D. Ligase
27. What enzyme breaks the hydrogen
bonds between nitrogen bases in DNA
before replication?
A.RNA polymerase
B.DNA polymerase
C. Helicase
D. Ligase
28. Which enzyme binds to each
separated DNA strand and joins
nucleotides to make a complementary
strand of DNA?
A.
B.
C.
D.
Ligase
DNA polymerase
RNA polymerase
Helicase
28. Which enzyme binds to each
separated DNA strand and joins
nucleotides to make a complementary
strand of DNA?
A.
B.
C.
D.
Ligase
DNA polymerase
RNA polymerase
Helicase
29. Which nitrogen base is NEVER
found on RNA?
A. Adenine
B. Thymine
C. Uracil
D. Guanine
29. Which nitrogen base is NEVER
found on RNA?
A. Adenine
B. Thymine
C. Uracil
D. Guanine
30. Which type of RNA that copies the
genetic code in the nucleus and takes
it to the ribosomes?
A. rRNA
B. tRNA
C.mRNA
D. gRNA
30. Which type of RNA that copies the
genetic code in the nucleus and takes
it to the ribosomes?
A. rRNA
B. tRNA
C.mRNA
D. gRNA
31. Which type of RNA that joins with
proteins to make ribosomes?
A. rRNA
B. tRNA
C. gRNA
D.mRNA
31. Which type of RNA that joins with
proteins to make ribosomes?
A. rRNA
B. tRNA
C. gRNA
D.mRNA
32. Process where DNA is separated
and mRNA makes a copy of the DNA
code
A.
B.
C.
D.
Replication
Transcription
Translation
Protein synthesis
32. Process where DNA is separated
and mRNA makes a copy of the DNA
code
A.
B.
C.
D.
Replication
Transcription
Translation
Protein synthesis
33. What is the main enzyme used in
transcription?
A.
B.
C.
D.
DNA polymerase
RNA polymerase
Helicase
Ligase
33. What is the main enzyme used in
transcription?
A.
B.
C.
D.
DNA polymerase
RNA polymerase
Helicase
Ligase
34. Process in which the mRNA code is
used to build a polypeptide chain
A. Replication
B. Transcription
C. Translation
34. Process in which the mRNA code is
used to build a polypeptide chain
A. Replication
B. Transcription
C. Translation
35. Location where translation occurs
A. Nucleus
B. Cytoplasm
C. Ribosome
D. Golgi apparatus
35. Location where translation occurs
A. Nucleus
B. Cytoplasm
C. Ribosome
D. Golgi apparatus
36. Complementary to the codon on
mRNA
A.
B.
C.
D.
Amino acid
Codon
Anticodon
tRNA
36. Complementary to the codon on
mRNA
A.
B.
C.
D.
Amino acid
Codon
Anticodon
tRNA