Structure of TRNA and RRNA – DNA, RNA and the Genetic Code
About the Lecture
The lecture Structure of TRNA and RRNA – DNA, RNA and the Genetic Code by Kevin Ahern, PhD is from the course Biochemistry: Basics.
Included Quiz Questions
What is true of tRNAs?
- They contain many chemically modified bases.
- They have a codon loop opposite of the part of the molecule where the amino acid is carried.
- They have an amino acid attached to the 5’ end.
- They carry ribosomes to the protein being made.
- Amino acids attach to thymine on the tRNA.
What is true of rRNAs?
- They have extensive secondary structures.
- They catalyze the formation of themselves.
- They code for protein using the genetic code.
- They are smaller than tRNAs
- Only the large subunit of the ribosome consists of rRNA.
Which of the following statements is NOT true regarding tRNA and rRNA?
- The anticodon present at the 5’ end of the acceptor end helps the tRNA to recognize and bind to the correct amino acid floating in the cytoplasm of the cell
- The tRNA is an adaptor molecule, which serves as a physical link between mRNA and the amino acid sequence of the protein.
- The large subunit rRNA present in the ribosomes is an example of a ribozyme that helps in the formation of peptide bonds during protein synthesis.
- Eukaryotes have four rRNA types.
- The amino acid gets attached to the base A of CCA tail present at the 3’ end of the tRNA at the acceptor stem.
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Author of lecture Structure of TRNA and RRNA – DNA, RNA and the Genetic Code
Kevin Ahern, PhD
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