Question

Two different amino acids are never encoded by the same codon, this character of genetic code is called ________.

• A. commaless
• B. degeneracy
• C. non-ambiguous
• D. non-overlapping

Hint:

Rule: 1 codon $\rightarrow$ 1 amino acid (non-ambiguous) But 1 amino acid $\rightarrow$ many codons (degeneracy)

Answer 1

The Correct Option is C

Concept: The genetic code has several important properties:
• Degeneracy: One amino acid can be coded by multiple codons
• Non-ambiguous: One codon codes for only one amino acid
• Non-overlapping: Codons are read separately
• Commaless: No gaps between codons

Step 1: Understand the statement.
The statement says one codon cannot code for more than one amino acid.

Step 2: Identify the property.
This is the definition of non-ambiguous nature of genetic code.

Step 3: Analyze options.
• (A) Commaless: No punctuation between codons
• (B) Degeneracy: One amino acid $\rightarrow$ multiple codons
• (C) Non-ambiguous: One codon $\rightarrow$ one amino acid (correct)
• (D) Non-overlapping: Codons do not overlap

Step 4: Conclusion.
Thus, the property is non-ambiguous. Final Answer: Option (C)