The one aspect which is not a salient feature of genetic code, is its being

Options

A. Specific
B. Degenerate
C. Ambiguous
D. Universal

Answer

To solve the question about the salient features of the genetic code, we need to analyze the characteristics of codons and identify which option does not represent a feature of the genetic code.

### Step-by-Step Solution:

1. **Understanding Codons**:
- Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids or stop signals during protein synthesis.

2. **Total Number of Codons**:
- There are a total of 64 possible codons (4^3 combinations of the four nucleotides: A, U, C, G).
- Out of these, 61 codons code for amino acids, and 3 are stop codons.

3. **Key Features of Codons**:
- **Specificity**: Each codon corresponds to a specific amino acid or a stop signal.
- **Unambiguous**: Each codon codes for only one amino acid (no ambiguity).
- **Degeneracy**: More than one codon can code for the same amino acid.
- **Universality**: The genetic code is nearly universal across all organisms (both prokaryotes and eukaryotes).

4. **Analyzing the Options**:
- We need to identify which option does not align with the features of the genetic code.
- The options include:
- A) Specific
- B) Degenerate
- C) Ambiguous
- D) Universal

5. **Identifying the Incorrect Feature**:
- **Specific**: This is a feature of codons.
- **Degenerate**: This is also a feature of codons.
- **Ambiguous**: This is NOT a feature of codons, as each codon is unambiguous.
- **Universal**: This is a feature of codons.

6. **Conclusion**:
- The one aspect that is not a salient feature of the genetic code is **Ambiguous** (Option C).

### Final Answer:
The one aspect which is not a salient feature of genetic code is its being **Ambiguous**.

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