The codon is read in mRNA in a contiguous fashion. This reflects which of the given features of the genetic code?
The codon is read in mRNA in a contiguous fashion. This reflects which of the given features of the genetic code?
The correct option is D There are no punctuations
The correct option is C
Explanation of the correct option:
- The codons present in mRNA are read in a contiguous fashion, without punctuations.
- Deletion or addition of a base may cause a change in the reading frame leading to frame-shift mutation.
Explanation of the incorrect option:
Option A:
The genetic code is regarded as degenerate, or redundant, since a single amino acid can be coded for by more than one codon, despite the fact that each codon is specialized for just one amino acid (or one-stop signal).
Option B:
The genetic code is regarded as degenerate, or redundant, since a single amino acid can be coded for by more than one codon, despite the fact that each codon is specialized for just one amino acid (or one-stop signal).
Option D:
- To control the production of proteins from amino acids, all known living systems employ nucleic acids and identical three-base codons.
- In all cells of all species, the mRNA codon UUU, for example, codes for phenylalanine. As a result, the genetic code is universal.
Final answer: The codon is read in mRNA in a contiguous fashion. This reflects there are no punctuations in the genetic code.
There are no punctuations
The correct option is C
Explanation of the correct option:
- The codons present in mRNA are read in a contiguous fashion, without punctuations.
- Deletion or addition of a base may cause a change in the reading frame leading to frame-shift mutation.
Explanation of the incorrect option:
Option A:
The genetic code is regarded as degenerate, or redundant, since a single amino acid can be coded for by more than one codon, despite the fact that each codon is specialized for just one amino acid (or one-stop signal).
Option B:
The genetic code is regarded as degenerate, or redundant, since a single amino acid can be coded for by more than one codon, despite the fact that each codon is specialized for just one amino acid (or one-stop signal).
Option D:
- To control the production of proteins from amino acids, all known living systems employ nucleic acids and identical three-base codons.
- In all cells of all species, the mRNA codon UUU, for example, codes for phenylalanine. As a result, the genetic code is universal.
Final answer: The codon is read in mRNA in a contiguous fashion. This reflects there are no punctuations in the genetic code.
