Multiple Choice
During which process does tRNA transfer amino acids to the growing polypeptide chain?
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11. Translation
Transfer RNA
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Which of the following represent common structural features of transfer RNA (tRNA) molecules?
A
A double helix with major and minor grooves similar to DNA
B
A linear, unbranched chain without any secondary structure
C
A circular structure with no free 3' or 5' ends
D
A cloverleaf secondary structure with an anticodon loop and an acceptor stem
Verified step by step guidance1
Understand that transfer RNA (tRNA) molecules have a characteristic secondary structure important for their function in translation.
Recall that tRNA folds into a shape often described as a 'cloverleaf' due to its pattern of base pairing and loops.
Identify the key features of this cloverleaf structure: it includes an anticodon loop that recognizes mRNA codons and an acceptor stem where the amino acid attaches.
Recognize that tRNA is not a simple linear chain; it has intramolecular base pairing that creates stems and loops, giving it a defined 3D shape.
Note that tRNA is not circular and does have free 3' and 5' ends, which are essential for its function during protein synthesis.
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