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Protein Synthesis Review

Total questions: 30

Worksheet time: 3600secs

Name
Class
Date
1.
Which two processes are involved in protein synthesis?
a)
Replication and Transcription
b)
Replication and Translation
c)
Transcription and Translation
2.
Which of the following molecules is made during transcription?
a)
DNA
b)
tRNA
c)
protein
d)
mRNA
3.
Which of the following bases is found only in RNA?
a)
Adenine
b)
Guanine
c)
Thymine
d)
Uracil
4.
Which form of RNA carries amino acids from the cytoplasm to the ribosome?
a)
amino RNA
b)
ribosomal RNA
c)
transfer RNA
d)
messenger RNA
5.
What are the three base segments of mRNA called?
a)
anticodons
b)
codons
c)
triplets
6.
Transcribe the following sequence of DNA into RNA:
AAG   CTT   TGC
a)
TTC  GAA  ACG
b)
UUC  GAA ACG
c)
TTC  GUU  UCG
d)
UUC  GUU  UCG
7.
What would be the complementary DNA strand for the following nucleotide sequence?
TCG ATA CGA
a)
AGC ATA GCT
b)
AGC TAT GCT
c)
AGC UAU GCU
d)
UGC TUT GCT
8.

Proteins are chains of amino acids bonded together. Which is the correct sequence for making proteins?

a)

Information is DNA is transferred into RNA and then made into protein

b)

Information in DNA is formed into protein directly.

c)

Information in RNA mutates into DNA and then is made into protein

d)

Information in RNA uses thermal energy to make protein

9.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
10.
Cytosine always pairs with
a)
Adenine
b)
Thymine
c)
Uracil
d)
Guanine
11.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
ribosome
d)
nucleus
12.
In DNA, Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
13.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
14.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
15.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
16.

A change in a DNA sequence(order) that affects genetic information.

a)

Recessive trait

b)

Mutation

c)

Allele

17.
The enzyme that unwinds the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
18.

Name this structure

a)

double helix

b)

nucelotide

c)

twisted ladder

d)

hydrogen bond

19.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
20.
Genetic info flows in one direction. Which best represents this flow?
a)
DNA-protein-RNA
b)
Protein-RNA-DNA
c)
RNA-protein-DNA
d)
DNA-RNA-protein
21.
The process to go from DNA to mRNA is _______
a)
translation
b)
transcription
c)
replication
22.
The process to go from mRNA to a protein is called ____
a)
transcription
b)
rRNA
c)
replication
d)
translation
23.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
24.
What process is going on in this photo? 
a)
Transcription 
b)
Translation 
c)
Replication 
d)
All the above 
25.
What is the three base sequence of mRNA that codes for a single amino acid?
a)
Anticodon
b)
Codon
c)
Protein
26.

What amino acid is represented by the codon AUG?

a)

Phenylalanine

b)

Methionine

c)

Leucine

d)

Stop codon

27.

If the DNA sequence of a gene is TAC CCC GGA GAG, what mRNA sequence will be produced in transcription?

a)

RNA Polymerase

b)

AUG GGG CCU CUC

c)

ATG GGG GGT GTG

d)

AUG GGG CCU CUG

e)

AUG CCG GCA CGG

28.

What amino acid would be added to the protein being formed during translation if the mRNA codon reads "CCU?"

a)

Isoleucine

b)

Stop

c)

Methionine

d)

Proline

29.
What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA
a)
Met-Pro-Ala-Val
b)
Met-Pro-Val
c)
Tyr-Gly-His
d)
Tyr-Gly-Arg-His
30.

What is the correct amino acid sequence for the mRNA code AUG GCA AAC CGU

a)

Met-Ala-Asn-Ala

b)

Met-Ala (because the third codon codes for STOP)

c)

Ileu-Ala-Asn-Ala

d)

Met-Ala-Asn-Arg

e)

Ileu-Ala-Asn-Ala

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