The following statements describe the process of translation.
I. An amide linkage is formed between adjacent amino acids.
II. Hydrogen bonds are formed between the anticodon and the codon.
III. mRNA binds to the ribosome.
IV. tRNA enters the ribosome carrying a specific amino acid.
In which order does this process take place?

Options

A. `III rarrIV rarrIIrarrI`
B. `IIIrarrIIrarrIrarrIV`
C. `IVrarrIIrarrIrarrIII`
D. `IVrarrIIrarrIIIrarrI`

Answer

To determine the correct order of the statements describing the process of translation, we need to analyze each statement and understand the sequence of events that occur during translation.

### Step-by-Step Solution:

1. **Identify the first step:**
- The process of translation begins when **mRNA binds to the ribosome**. This is essential as the ribosome is the site where protein synthesis occurs.
- **Statement III:** "mRNA binds to the ribosome" is the first step.

2. **Identify the second step:**
- After the mRNA is bound to the ribosome, the next step involves the entry of **tRNA into the ribosome**. The tRNA carries a specific amino acid and has an anticodon that will pair with the corresponding codon on the mRNA.
- **Statement IV:** "tRNA enters the ribosome carrying a specific amino acid" is the second step.

3. **Identify the third step:**
- Once the tRNA is in the ribosome, it will form **hydrogen bonds between the anticodon of the tRNA and the codon of the mRNA**. This pairing is crucial for ensuring that the correct amino acid is added to the growing polypeptide chain.
- **Statement II:** "Hydrogen bonds are formed between the anticodon and the codon" is the third step.

4. **Identify the fourth step:**
- Finally, as the amino acids are brought in by the tRNA, they are linked together by **amide linkages (peptide bonds)** to form a polypeptide chain. This is the final step in the translation process.
- **Statement I:** "An amide linkage is formed between adjacent amino acids" is the fourth step.

### Conclusion:
Based on the analysis, the correct order of the statements describing the process of translation is:
**III → IV → II → I** (3, 4, 2, 1).

### Final Answer:
The correct sequence is: **3, 4, 2, 1**.