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Questions and Answers
Which of the following is true about the genetic code?
Which of the following is true about the genetic code?
- The genetic code is universal and does not vary among different organisms.
- The genetic code consists of 20 codons that specify amino acids.
- The genetic code consists of 64 codons, with each codon specifying an amino acid. (correct)
- The genetic code is non-degenerate, with each codon specifying a unique amino acid.
What is the result of a missense mutation?
What is the result of a missense mutation?
- A substitution of one nucleotide that alters the reading frame.
- A substitution of one nucleotide that incorporates an alternative amino acid. (correct)
- A substitution of one nucleotide that results in early termination of the polypeptide.
- A substitution of one nucleotide that introduces a stop codon.
What is the result of a nonsense mutation?
What is the result of a nonsense mutation?
- A substitution of one nucleotide that incorporates an alternative amino acid.
- A substitution of one nucleotide that alters the reading frame.
- A substitution of one nucleotide that results in early termination of the polypeptide.
- A substitution of one nucleotide that introduces a stop codon. (correct)
What is a frameshift mutation?
What is a frameshift mutation?
What are the three roles of RNA in translation?
What are the three roles of RNA in translation?
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