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 order of the statements describing the process of translation, we need to analyze each statement regarding its position in the translation process:

1. **Statement I**: An amide linkage is formed between adjacent amino acids.
2. **Statement II**: Hydrogen bonds are formed between the anticodon and the codon.
3. **Statement III**: mRNA binds to the ribosome.
4. **Statement IV**: tRNA enters the ribosome carrying a specific amino acid.

### Step-by-Step Solution:

**Step 1: Identify the first step in translation.**
- The process of translation begins with the binding of mRNA to the ribosome. This is described in **Statement III**. Therefore, the first step is **Statement III**.

**Step 2: Identify the second step.**
- Once the mRNA is bound to the ribosome, the next step involves tRNA entering the ribosome. The tRNA carries a specific amino acid and has an anticodon that is complementary to the mRNA codon. This is described in **Statement IV**. Thus, the second step is **Statement IV**.

**Step 3: Identify the third step.**
- After the tRNA enters the ribosome, it pairs with the mRNA codon through complementary base pairing. This interaction forms hydrogen bonds between the anticodon of the tRNA and the codon of the mRNA. This is described in **Statement II**. Therefore, the third step is **Statement II**.

**Step 4: Identify the fourth step.**
- Finally, as the ribosome moves along the mRNA, an amide linkage is formed between adjacent amino acids, which is described in **Statement I**. This is the last step in the process of translation. Thus, the fourth step is **Statement I**.

### Conclusion:
Putting this all together, the correct order of the statements describing the process of translation is:
1. **Statement III**: mRNA binds to the ribosome.
2. **Statement IV**: tRNA enters the ribosome carrying a specific amino acid.
3. **Statement II**: Hydrogen bonds are formed between the anticodon and the codon.
4. **Statement I**: An amide linkage is formed between adjacent amino acids.

Thus, the order is **III, IV, II, I**.