17 Questions
What is the role of transfer RNA (tRNA) in translation?
To carry a specific amino acid to a ribosome
What is the function of the anticodon on tRNA?
To base-pair with a complementary codon on mRNA
What is the purpose of the 3 stages of translation?
To assemble a polypeptide from a sequence of codons
What is the role of polyribosomes in translation?
To assemble multiple polypeptide chains simultaneously
What is the function of aminoacyl-tRNA synthetase in translation?
To activate tRNA by attaching an amino acid
How do tRNA molecules recognize complementary mRNA codons?
Through complementary base-pairing of the anticodon
What is the function of tRNA in protein synthesis?
To recognize complimentary codons on the mRNA and bring the corresponding amino acid to the ribosome
What is the typical length of a tRNA molecule?
80 nucleotides
Why are there only 45 types of tRNA, despite the existence of 61 codons on the mRNA?
Because some tRNAs can recognize multiple codons
What is the significance of the 'wobble' base pairing rule in protein synthesis?
It allows for the recognition of multiple codons by a single tRNA
What is the function of the attachment site at the 3' end of a tRNA molecule?
To bind the amino acid during aminoacylation
What is the primary function of aminoacyl-tRNA synthetase?
To catalyze the addition of a specific amino acid to a tRNA molecule
What is the site on the ribosome where the tRNA carrying the growing polypeptide chain is located?
P site
What is the purpose of the ribosomal RNA (rRNA) in protein synthesis?
To form the structure of the ribosome
What is the function of the A site on the ribosome?
To carry the tRNA molecule with the next amino acid
What is the role of the tRNA anticodon in protein synthesis?
To recognize the mRNA codon and facilitate the binding of tRNA to the ribosome
What is the difference between the ribosomes of prokaryotes and eukaryotes?
Prokaryotic ribosomes have a different rRNA composition compared to eukaryotic ribosomes
This quiz covers the structure and function of transfer RNA (tRNA) in the process of protein synthesis. It includes questions on the chemical nature of tRNA, its 3D structure, and how it recognizes its complimentary codon.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
