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Protein Synthesis Unit Review
1 Which of the following is a nucleotide found in DNA?
A
B
C
D
deoxyribose + phosphate group + cytosine
deoxyribose + phosphate group + uracil
ribose + phosphate group + uracil
ribose + phosphate group + cytosine
2 DNA replication results in two DNA molecules,
A
B
C
D
each with two new strands
one with two new strands and the other with two original strands
each with two original strands
each with one new strand and one original strand
3 Unlike DNA, RNA contains
A
B
C
D
phosphate groups
adenine
uracil
thymine
4 Which type(s) of RNA is (are) involved in protein synthesis?
A
B
C
D
transfer RNA only
messenger RNA, ribosomal RNA, and transfer RNA
messenger RNA only
ribosomal RNA and transfer RNA only
5 How many codons are needed to specify three amino acids?
A
B
C
D
3
6
9
12
6 Which type of RNA functions as a blueprint of the genetic code?
A
B
C
D
rRNA
tRNA
mRNA
RNA polymerase
7 DNA is copied during a process called
A
translation
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Protein Synthesis Unit Review
B
C
D
replication
transcription
transformation
8 What is produced during transcription?
A
B
C
D
proteins
RNA polymerase
DNA molecules
RNA molecules
9 Genes contain instructions for assembling
A
B
C
D
nucleosomes
proteins
pyrimidines
purines
10 Which RNA molecule carries amino acids?
A
B
C
D
ribosomal RNA
messenger RNA
transfer RNA
RNA polymerase
11 The order of nitrogenous bases in DNA determines the order of __________
in proteins
A
B
C
D
amino acids
RNA nucleotides
RNA nitrogenous bases
Ribosomes
12 The number of nucleic acid bases in a codon are
A
B
C
D
46
20
4
3
13 In the formation of a molecule of RNA from DNA, adenine bonds to
A
B
Uracil
Thymine
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Protein Synthesis Unit Review
C
D
Adenine
Cytosine
14 What happens during the process of translation?
A
B
C
D
Transfer RNA is made from messenger RNA
Copies of DNA molecules are made
The cell uses information from messenger RNA to produce
proteins
Messenger RNA is made from DNA
15 In eukaryotes, DNA
A
B
C
D
is located in the nucleus
floats freely in the cytoplasm
is located in the ribosomes
is circular
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Answer Key: Protein Synthesis Unit Review
Question
Key
1
A
2
D
3
C
4
B
5
A
6
C
7
B
8
D
9
B
10
C
11
A
12
D
13
A
14
C
15
A
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