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Protein Synthesis
Test Description: How are proteins made from DNA?
Instructions: Answer all questions to get your test result.
1) Both DNA and RNA are made of subunits or building blocks called _____.
A
nucleotides
B
amino acids
C
enzymes
D
proteins
2) What is the name of the enzymes that adds new nucleotides to build mRNA?
A
DNA Polymerase
B
Restriction endonuclease
C
RNA Polymerase
D
Helicase
3) How many strands does DNA have?
A
3
B
2
C
1
D
4
4) How many strands does mRNA have?
A
4
B
3
C
2
D
1
5) Which mRNA nucleotide is complementary to guanine?
A
adenine
B
uracil
C
thymine
D
cytosine
6) Which RNA nucleotide is complementary to adenine?
A
thymine
B
cytosine
C
uracil
D
guanine
7) Which RNA molecule is complementary to thymine?
A
uracil
B
cytosine
C
adenine
D
guanine
8) What is the function of mRNA?
A
both 1 and 4
B
to make tRNA
C
to transmit the code for making proteins from DNA to the site of protein synthesis
D
to carry the information necessary to make protein from the nucleus to the ribosome
9) What happens to DNA once transcription is done?
A
It zips back up until it is necessary to transcribe the gene again
B
It is destroyed.
C
It mutates
D
It makes copies of itself right away.
10) What is translation?
A
The production of RNA Polymerase and nucleic acids at the ribosomes.
B
The making of tRNA, mRNA, and ribosomes
C
The making of mRNA using DNA as a template.
D
The making of a protein using the codons on mRNA as instructions.
11) What is the job of mRNA?
A
to serve as the instructions for making proteins at the ribosome
B
to make mRNA
C
to make DNA
D
to make more tRNA molecules at the ribosome
12) What is the job of tRNA?
A
to make mRNA
B
to make more codons so that translation can continue to occur
C
to bring amino acids to the ribosome in the correct order
D
to bring nucleic acids to the ribosome in the correct order
13) Where are codons located?
A
on proteins
B
on tRNA
C
on RNA Polymerase
D
on mRNA
14) Where are anticodons located?
A
on DNA
B
on rRNA
C
on tRNA
D
on mRNA
15) What happens at the ribosome?
A
mRNA codons and their complementary tRNA anticodons match up
B
all of the above
C
amino acids are joined together by peptide bonds to make a polypeptide (protein)
D
protein synthesis
16) What are amino acids?
A
the building blocks (monomers) of protein
B
the building blocks (monomers) of nucleic acids like DNA and RNA
C
the building blocks (monomers) of lipids
D
Very dangerous substances that have an extremely low pH (very acidic)
17) What is a polypeptide?
A
a chain of amino acids
B
a protein
C
all of the above
D
a polypeptide is the product of translation
*select an answer for all questions
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