tRNA is soluble in

Options

A. Water
B. 1 M sodium choride solution
C. 0.1 M sucrose solution
D. Alcohol

Answer

**Step-by-Step Solution:**

1. **Understanding tRNA**: Transfer RNA (tRNA) is a type of RNA that plays a crucial role in protein synthesis by bringing amino acids to the ribosome during translation.

2. **Types of RNA**: There are three main types of RNA:
- Ribosomal RNA (rRNA) - the largest and generally insoluble.
- Messenger RNA (mRNA) - of intermediate size.
- Transfer RNA (tRNA) - the smallest, typically consisting of 76 to 90 nucleotides.

3. **Solubility of tRNA**:
- tRNA is soluble in certain solutions.
- It is specifically soluble in saline solutions, particularly in a 1 molar sodium chloride (NaCl) solution.

4. **Evaluating the Options**:
- **Water**: tRNA is not soluble in plain water.
- **1 Molar Sodium Chloride Solution**: tRNA is soluble in this solution, making this option correct.
- **0.1 Molar Sucrose Solution**: tRNA is not soluble in this sugar solution.
- **Alcohol**: tRNA is not soluble in alcohol.

5. **Conclusion**: The correct answer is that tRNA is soluble in a 1 molar sodium chloride solution.

**Final Answer**: tRNA is soluble in 1 molar sodium chloride solution.

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