Structure of DNA and RNA - Real World Applications
Q. What is the role of ribosomal RNA (rRNA) in the cell?
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A.
To carry amino acids to the ribosome
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B.
To catalyze protein synthesis
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C.
To store genetic information
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D.
To transcribe DNA
Solution
Ribosomal RNA (rRNA) plays a crucial role in catalyzing protein synthesis at the ribosome.
Correct Answer: B — To catalyze protein synthesis
Q. Which mutation can result in a premature stop codon?
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A.
Silent mutation
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B.
Missense mutation
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C.
Nonsense mutation
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D.
Frameshift mutation
Solution
A nonsense mutation can result in a premature stop codon, leading to truncated proteins.
Correct Answer: C — Nonsense mutation
Q. Which technique is used to amplify DNA segments?
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A.
Gel electrophoresis
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B.
Polymerase chain reaction (PCR)
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C.
DNA sequencing
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D.
Cloning
Solution
Polymerase chain reaction (PCR) is used to amplify specific DNA segments.
Correct Answer: B — Polymerase chain reaction (PCR)
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