[A]: Triplet code is a degenerate one.
[R]: Explanation for degeneracy is provided by Wobble hypothesis

Options

A. (a) If both A and R are true and R is the correct explanation of A
B. (b) If both A and R are true but R is not the correct explanation of A
C. (c) If A is true and R is false
D. (d) If both A and R are false

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**:
The assertion states that the triplet code is a degenerate one. This means that multiple codons can code for the same amino acid.

2. **Explaining Degeneracy**:
In the genetic code, there are 64 possible codons (combinations of three nucleotides), but only 61 of these codons specify amino acids, while 3 are stop codons. This results in some amino acids being encoded by more than one codon, demonstrating the concept of degeneracy.

3. **Example of Degeneracy**:
Take the amino acid proline as an example. Proline is encoded by four different codons: CCU, CCC, CCA, and CCG. This illustrates how a single amino acid can be represented by multiple codons.

4. **Introducing the Wobble Hypothesis**:
The reason for this degeneracy can be explained by the Wobble Hypothesis, proposed by Francis Crick in 1966. This hypothesis suggests that the third position of the codon (the wobble position) can vary without affecting the amino acid that is produced.

5. **Mechanism of Wobble**:
According to the Wobble Hypothesis, the third base of the codon binds less tightly to the first base of the anticodon on the tRNA. This loose binding allows for flexibility, enabling different codons to code for the same amino acid without changing the overall protein structure.

6. **Conclusion**:
Since both the assertion (that the triplet code is degenerate) and the reason (that the Wobble Hypothesis explains this degeneracy) are true, and the reason provides a correct explanation for the assertion, the correct answer is that both the assertion and reason are true, and the reason is the correct explanation of the assertion.

### Final Answer:
Both assertion and reason are true, and the reason is the correct explanation of the assertion.