Modified nucleotide is seen in ?
## Core Concept
The question pertains to the identification of a molecule that contains a modified nucleotide. Modified nucleotides are commonly found in transfer RNA (tRNA) molecules, which are crucial for protein synthesis. These modifications are essential for the stability and function of tRNA.
## Why the Correct Answer is Right
The correct answer, , refers to a type of RNA that contains modified nucleotides. tRNA molecules are known to have various modifications, including pseudouridylation, methylation, and the formation of dihydrouridine, among others. These modifications are vital for the proper folding, stability, and function of tRNA molecules, enabling them to accurately translate messenger RNA (mRNA) sequences into proteins.
## Why Each Wrong Option is Incorrect
- **Option A:** - This option does not directly relate to a type of RNA or molecule commonly associated with modified nucleotides in a broad sense.
- **Option B:** - While ribosomal RNA (rRNA) is a component of ribosomes, which are crucial for protein synthesis, it is not particularly known for containing modified nucleotides to the extent that tRNA does.
- **Option D:** - This option might relate to other types of RNA or molecules but is not specifically recognized for containing modified nucleotides in the context provided.
## Clinical Pearl / High-Yield Fact
A key point to remember is that tRNA molecules contain modified bases, which are critical for their function. One of the most notable modified bases in tRNA is pseudouridine. These modifications help in maintaining the structural integrity of tRNA and facilitating accurate codon recognition during protein synthesis.
## Correct Answer Line
**Correct Answer: C. **