Bio 212 Exam #2 ISU (manz & dobbs)
Questions With Correct Answers
Which of the following mutations would be most likely to have a harmful effect
| | | | | | | | | | | | | |
on an organism?
| |
-a single nucleotide insertion downstream of, and close to, the start of the coding
| | | | | | | | | | | | | |
sequence
-a single nucleotide deletion near the end of the coding sequence
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-a deletion of three nucleotides near the middle of a gene
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-a single nucleotide deletion in the middle of an intron - CORRECT ANSWER✔✔-a
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single nucleotide insertion downstream of, and close to, the start of the coding
| | | | | | | | | | | | |
sequence
Which of the following methods is NOT used by eukaryotes to regulate gene
| | | | | | | | | | | | |
expression?
-Alternative splicing |
-Enhancers and silencers | |
-specialized sigma proteins | |
-RNA interference - CORRECT ANSWER✔✔-specialized sigma proteins
| | | | | |
In the termination phase of translation:
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, -the mRNA stop codon is encountered at the E site
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-the terminator tRNA anticodon binds with the mRNA stop
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| codon
-the protein release factor fills the A site
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-methionine is always the last amino acid to be added - CORRECT ANSWER✔✔-
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the protein release factor fills the A site
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What will be the RNA sequence that is transcribed from the DNA sequence
| | | | | | | | | | | | |
below?
5' - ACTCGCATCGGCA - 3' (TEMPLATE STRAND)
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3' - TGAGCGTAGCCGT - 5' (CODING STRAND)
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| -3' | TGAGCGTAGCCGT | 5'
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| -5' | UGCCGAUGCGAGU | 3'
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| -3' | UGCCGAUGCGAGU | 5'
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| -5' | TGAGCGTAGCCGT | 3' - CORRECT ANSWER✔✔-5' | UGCCGAUGCGAGU | 3'
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A drug decreases the rate of RNA degradation in a cell. What type of gene
| | | | | | | | | | | | | | |
regulation would this be and what would be the effect of the drug?
| | | | | | | | | | | |
| -Transcriptional control, decreased protein production
| | | |
| -Translational control, increased protein production
| | | |
| -Translational control, decreased protein production
| | | |
Questions With Correct Answers
Which of the following mutations would be most likely to have a harmful effect
| | | | | | | | | | | | | |
on an organism?
| |
-a single nucleotide insertion downstream of, and close to, the start of the coding
| | | | | | | | | | | | | |
sequence
-a single nucleotide deletion near the end of the coding sequence
| | | | | | | | | |
-a deletion of three nucleotides near the middle of a gene
| | | | | | | | | |
-a single nucleotide deletion in the middle of an intron - CORRECT ANSWER✔✔-a
| | | | | | | | | | | | |
single nucleotide insertion downstream of, and close to, the start of the coding
| | | | | | | | | | | | |
sequence
Which of the following methods is NOT used by eukaryotes to regulate gene
| | | | | | | | | | | | |
expression?
-Alternative splicing |
-Enhancers and silencers | |
-specialized sigma proteins | |
-RNA interference - CORRECT ANSWER✔✔-specialized sigma proteins
| | | | | |
In the termination phase of translation:
| | | | |
, -the mRNA stop codon is encountered at the E site
| | | | | | | | |
-the terminator tRNA anticodon binds with the mRNA stop
| | | | | | | | |
| codon
-the protein release factor fills the A site
| | | | | | |
-methionine is always the last amino acid to be added - CORRECT ANSWER✔✔-
| | | | | | | | | | | |
the protein release factor fills the A site
| | | | | | |
What will be the RNA sequence that is transcribed from the DNA sequence
| | | | | | | | | | | | |
below?
5' - ACTCGCATCGGCA - 3' (TEMPLATE STRAND)
| | | | | |
3' - TGAGCGTAGCCGT - 5' (CODING STRAND)
| | | | | |
| -3' | TGAGCGTAGCCGT | 5'
| | | |
| -5' | UGCCGAUGCGAGU | 3'
| | | |
| -3' | UGCCGAUGCGAGU | 5'
| | | |
| -5' | TGAGCGTAGCCGT | 3' - CORRECT ANSWER✔✔-5' | UGCCGAUGCGAGU | 3'
| | | | | | | | | | |
A drug decreases the rate of RNA degradation in a cell. What type of gene
| | | | | | | | | | | | | | |
regulation would this be and what would be the effect of the drug?
| | | | | | | | | | | |
| -Transcriptional control, decreased protein production
| | | |
| -Translational control, increased protein production
| | | |
| -Translational control, decreased protein production
| | | |
