Identify the mismatched pair in context to eukaryotic transcription.

Options

A. Origin of life from outer space
B. RNA pol II - synthesis of precursor of mRNA
C. RNA pol III - synthesis of tRNA
D. RNA pol III - synthesis of snRNA

Answer

To solve the question of identifying the mismatched pair in the context of eukaryotic transcription, we will follow these steps:

### Step-by-Step Solution:

1. **Understand Transcription**: Transcription is the process of synthesizing RNA from a DNA template. This process occurs in both prokaryotes and eukaryotes, but there are differences in the enzymes involved.

**Hint**: Remember that transcription is the first step in gene expression where RNA is made from DNA.

2. **Identify RNA Polymerases in Eukaryotes**: Eukaryotic cells have three main types of RNA polymerases:
- **RNA Polymerase I**: Synthesizes rRNA (except 5S rRNA).
- **RNA Polymerase II**: Synthesizes mRNA (specifically, precursor mRNA or hnRNA).
- **RNA Polymerase III**: Synthesizes tRNA, 5S rRNA, and snRNA (small nuclear RNA).

**Hint**: Recall the specific types of RNA synthesized by each RNA polymerase in eukaryotic cells.

3. **Analyze the Options**: The question provides several options related to eukaryotic transcription. We need to evaluate each option to determine which one is incorrect or mismatched.
- **Option 1**: Origin of life from outer space - This is unrelated to transcription.
- **Option 2**: RNA polymerase III synthesizes mRNA - This is incorrect; RNA polymerase II synthesizes mRNA.
- **Option 3**: RNA polymerase III synthesizes tRNA - This is correct.
- **Option 4**: RNA polymerase III synthesizes snRNA - This is also correct.

**Hint**: Check each statement against what you know about the functions of RNA polymerases.

4. **Identify the Mismatched Pair**: From the analysis, Option 1 (origin of life from outer space) does not relate to transcription at all, making it the mismatched pair in the context of eukaryotic transcription.

**Hint**: Look for options that do not pertain to the process of transcription or the roles of RNA polymerases.

### Conclusion:
The mismatched pair in the context of eukaryotic transcription is **Option 1: Origin of life from the outer space**. This option is unrelated to the transcription process.