Type of RNA found in the matrix of mitochondria

Options

A. m-RNA
B. r-RNA
C. t-RNA
D. 1,2 and 3

Answer

To answer the question about the types of RNA found in the matrix of mitochondria, we can break down the information step by step.

### Step-by-Step Solution:

1. **Understanding Mitochondrial RNA**:
- Mitochondria are known as the powerhouse of the cell and have their own genetic material. They contain RNA that is involved in protein synthesis.

2. **Identifying Types of RNA**:
- There are three main types of RNA involved in protein synthesis:
- **mRNA (messenger RNA)**: Carries the genetic information from DNA to the ribosomes for protein synthesis.
- **rRNA (ribosomal RNA)**: Forms the core of ribosomes and is essential for protein synthesis.
- **tRNA (transfer RNA)**: Transfers amino acids to the ribosomes during protein synthesis.

3. **Analyzing the Options**:
- The question provides options for types of RNA found in the mitochondrial matrix:
- **Option 1: mRNA** - Correct, as it is present in mitochondria.
- **Option 2: rRNA** - Correct, as it is also present in mitochondria.
- **Option 3: tRNA** - Correct, as it is also present in mitochondria.
- **Option 4: 1st, 2nd, 3rd** - This option includes all types of RNA mentioned.

4. **Conclusion**:
- Since all three types of RNA (mRNA, rRNA, tRNA) are found in the mitochondrial matrix, the correct answer is **Option 4**.

### Final Answer:
The type of RNA found in the matrix of mitochondria includes mRNA, rRNA, and tRNA. Therefore, the correct answer is **Option 4: 1st, 2nd, 3rd**.

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