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BIOL 101 GENE EXPRESSION QUIZ

BIOL 101 GENE EXPRESSION QUIZ

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Gene Expression Quiz
Question 1
Points: 10 out of 10
Which of the RNA molecules can best be described as a copy of the gene that codes for a protein? (This RNA molecule carries the genetic information necessary to build a protein)
mRNA
tRNA
rRNA
all of these
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Question 2
Points: 10 out of 10
Which of the following mutations would not be noticeable when studying the expressed traits (or proteins) of an organism?
frameshift
silent
nonsense
missense
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Question 3
Points: 10 out of 10
Identify the flow of genetic information during protein synthesis in a eukaryotic Cell.
Transcription produces an mRNA molecule in the nucleus. The mRNA moves to the cytoplasm where translation occurs.
DNA makes a copy of itself which is transported from the nucleus to the cytoplasm by a chain of amino acids.
mRNA moves a protein to the DNA and makes a copy of the DNA through translation.
Translation produces a tRNA molecule in the nucleus; the tRNA transports a protein to the cytoplasm of the cell.
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Question 4
Points: 0 out of 10
A gene codes for a protein that is 500 amino acids long. Which of the following mutations is likely to be the most deleterious?
a nonsense mutation at the fifth codon ****RIGHT
a missense mutation at the 490th codon
a nonsense mutation at the 490th codon
a missense mutation at the fifth codon ****WRONG
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Question 5
Points: 10 out of 10
When a cell is getting ready to divide into two cells (during the process of mitosis), which process must first happen so that the entire genome can be passed to the new daughter cells?
transcription
DNA replication
PCR
translation
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Question 6
Points: 10 out of 10
A gene codes for a protein that is 500 amino acids long. A nonsense mutation occurs at the 6th codon. What is the result?
A polypeptide that is missing the 6th amino acid.
A polypeptide that has a different amino acid at position 6.
A polypeptide that has the correct amino acids for the first 5 position, and then incorrect amino acids after that.
A polypeptide that is 5 amino acids long.
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Question 7
Points: 10 out of 10
Which of the following statements is correct regarding DNA replication, PCR, and transcription?
All three processes result in a double stranded product.
All three processes happen in the cell naturally.
Both DNA replication and PCR use DNA polymerases.
All three processes require primers.
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Question 8
Points: 10 out of 10
Transcription produces:
Proteins from a DNA template
Proteins from an RNA template
DNA from a DNA template
RNA from a DNA template
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Question 9
Points: 10 out of 10
 
serine
tryrosine
isoleucine
leucine
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Question 10
Points: 10 out of 10
Which nitrogen base is not found on nucleotides used to build the new molecule in transcription?
U
T
A
C
G
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