The elongation factors required for prokaryotes are

Options

A. EF-Tu and EF-Ts
B. `eEF_(1)`
C. `elF_(2)`
D. `eEF_(2)`

Answer

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the elongation factors required for prokaryotes. We need to identify which factors are specific to prokaryotic translation.

2. **Define Elongation Factors**: Elongation factors are proteins that facilitate the process of translation by assisting in the movement of tRNA (transfer RNA) within the ribosome during protein synthesis.

3. **Identify the Options**: The options provided are:
- Option 1: EFTU and EFTS
- Option 2: EEF1
- Option 3: EIF2
- Option 4: EEF2

4. **Analyze Each Option**:
- **Option 1 (EFTU and EFTS)**: These are known elongation factors in prokaryotes. EF-Tu (EFTU) helps in delivering the aminoacyl-tRNA to the ribosome, while EF-TS (EFTS) is involved in the recycling of EF-Tu.
- **Option 2 (EEF1)**: This is an elongation factor in eukaryotes, not prokaryotes.
- **Option 3 (EIF2)**: This is an initiation factor in eukaryotes, not an elongation factor.
- **Option 4 (EEF2)**: This is also an elongation factor in eukaryotes.

5. **Conclusion**: Based on the analysis, the only correct option that lists elongation factors specific to prokaryotes is **Option 1: EFTU and EFTS**.

### Final Answer:
The elongation factors required for prokaryotes are **EFTU and EFTS**.

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