Which form of RNA has a structure resembling the clover leaf?
Correct answer: D. tRNA
- A. rRNA
- B. hnRNA
- C. mRNA
- D. tRNA
Explanation
The form of RNA that has a structure resembling the cloverleaf is tRNA (transfer RNA). tRNA is a small RNA molecule that plays a key role in protein synthesis. It transfers amino acids from the cytoplasm to the ribosome, where they are incorporated into the growing polypeptide chain. R.Holly, in 1965, gave the clover leaf model of tRNA for yeast alanyl tRNA.It has four major sites: the AAbinding site, the anticodon site, the TUC loop, and the DHU loop. The cloverleaf structure of tRNA is important for its function. The anticodon loop of tRNA pairs with the codon on mRNA, and the amino acid attachment site binds to the amino acid that will be incorporated into the protein.The other options are incorrect because:rRNA (ribosomal RNA) is a component of ribosomes, which are the organelles where protein synthesis takes place. rRNA does not have a cloverleaf structure.mRNA (messenger RNA) is a type of RNA that carries the genetic code from DNA to the ribosome. mRNA does not have a cloverleaf structure.hnRNA (heterogeneous nuclear RNA) is a precursor to mRNA. It is processed into mRNA before it is exported from the nucleus to the cytoplasm. hnRNA does not have a cloverleaf structure.
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