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WorksheetsRNA and Protein Synthesis
Total questions: 34
Worksheet time: 23mins
Name
Class
Date
1.
What is the portion of a DNA molecule which contains the code for making a protein?
a)
Nucleotide
b)
Gene
c)
Codon
d)
Chromosome
2.
How is RNA different from DNA?
a)
It contains the nitrogen base cytosine
b)
It has a sugar and phosphate backbone
c)
It's single stranded
d)
All of these are difference
3.
Which molecule is directly copied from DNA and then leaves the nucleus after transcription?
a)
mRNA
b)
tRNA
c)
rRNA
d)
DNA
4.
Which enzyme is responsible for matching the mRNA bases to the DNA template during TRANSCRIPTION?
a)
DNA Ligase
b)
Binding Protein
c)
DNAPolymerase
d)
RNA Polymerase
5.
Anticodons are attached to which molecule?
a)
mRNA
b)
tRNA
c)
rRNA
d)
DNA
6.
Three mRNA bases that are read together are known as what?
a)
Codon
b)
Anticodon
c)
Triplet
d)
Amino acid
7.
Which of the following would be the transcribed mRNA complement to the DNA bases TCG ACT?
a)
AGC TGA
b)
TCG ACT
c)
AGC UGA
d)
TGC TGA
8.
What stops the process of translation?
a)
DNA polymerase just stops adding bases
b)
mRNA transcript falls apart
c)
A stop codon is reached
d)
The ribosome moves on to another protein
9.
What are the individual units (monomers) that make up a protein?
a)
amino acids
b)
anticodons
c)
nucleotides
d)
codons
10.
Which of the following would be considered a stop codon? (Use your chart)
a)
UGG
b)
UGU
c)
UUU
d)
UAA
11.
Which of the correct mRNA codon for Lysine? (Use your chart)
a)
AAG
b)
AAC
c)
AAU
d)
ACG
12.
For this DNA sequence, TAG ATG GGA CTA, which is the amino acid sequence? (Use your chart)
a)
Val-Leu-Leu-Phe
b)
Glu-Asp-Gly-Ser
c)
Ile-Tyr-Pro-Asp
d)
Ile-Cys-Trp-Asp
13.
For THREE AMINO ACIDS to be coded for, how many NITROGEN BASES are needed?
a)
1
b)
3
c)
6
d)
9
14.
For THREE AMINO ACIDS to be coded for, how many CODONS are needed?
a)
1
b)
3
c)
6
d)
9
15.
Which process occurs in the ribosome?
a)
Transcription
b)
Translation
c)
Replication
d)
All of these
16.
What process uses DNA to make mRNA?
a)
Transcription
b)
Translation
c)
Replication
d)
All of these
17.
What process is necessary for the DNA code to leave the nucleus?
a)
Transcription
b)
Translation
c)
Replication
d)
All of these
18.
What process uses mRNA to build a protein?
a)
Transcription
b)
Translation
c)
Replication
d)
All of these
19.
If the original DNA sequence is: ACC TGA TGT. What mutation happened in this sequence: AAC CTG ATG T
a)
Deletion
b)
Substitution
c)
Insertion
d)
None of these
20.
A ___ is a portion of a DNA molecule that contains the information necessary for the building of a protein.
a)
Amino acid
b)
Codon
c)
Chromosome
d)
Gene
21.
Proteins are simply a chain of amino acids.
a)
True
b)
False
22.
Which of the following best explains why TRANSCRIPTION is necessary
a)
RNA carries the original "recipe" for the building of a protein
b)
Amino acids must be signaled for at the ribosome
c)
DNA cannot leave the nucleus, but mRNA can
d)
DNA is found in the ribosome, where proteins are made
23.
Which enzyme unzips the DNA molecule during TRANSCRIPTION?
a)
RNA Polymerase
b)
DNA Polymerase
c)
DNA Ligase
d)
DNA Helicase
24.
This image illustrates which of the following processes?
a)
Transcription
b)
Translation
c)
Replication
d)
Protein Synthesis
25.
The process seen in this image is ___ .
a)
Transcription
b)
Translation
c)
Replication
26.
Which of the following molecules is created during TRANSCRIPTION?
a)
Protein
b)
DNA
c)
mRNA
d)
tRNA
27.
Which of the following molecules is created during TRANSLATION?
a)
Protein
b)
DNA
c)
mRNA
d)
tRNA
28.
A codon consists of three nitrogen bases on a molecule of mRNA.
a)
True
b)
False
29.
An anticodon is found on a molecule of tRNA and ensures that the correct amino acid is transferred to the ribosome.
a)
True
b)
False
30.
Each codon signals for a very specific ___.
a)
Protein
b)
Nucleotide
c)
Gene
d)
Amino Acid
31.
Amino acids are held together by ___ bonds.
a)
Hyrodgen
b)
Nitrogen
c)
Peptide
d)
Phosphate
32.
If the DNA sequence reads GAATCGATA, what would the complementary mRNA sequence be?
a)
CUUAGCUAU
b)
CTTAGCTAT
c)
ATAGCTAAG
d)
AUAGCUAAG
33.
Mutations are always harmful to the individual or offspring,
a)
True
b)
False
34.
Only mutations which take place in GAMETES can be passed down to offspring
a)
True
b)
False
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