Final answer:
tRNA molecules are adapter molecules in protein synthesis. They have a cloverleaf structure with specialized arm regions, including an anticodon arm and an aminoacyl arm. tRNAs carry a specific amino acid and can be recognized by multiple aminoacyl-tRNA synthetases. Each tRNA typically carries only one type of amino acid per molecule.
Step-by-step explanation:
tRNA molecules serve as adapter molecules during protein synthesis. They carry a specific amino acid and recognize mRNA codons. tRNAs have a cloverleaf structure with several arms, including an anticodon arm and an aminoacyl arm. They bind to ribosomes to add the corresponding amino acid to the growing polypeptide chain.
tRNAs are single-stranded RNA molecules and have unusual nucleotides coded by genes with nonstandard bases. They can be recognized by several aminoacyl-tRNA synthetases, which ensure the correct matching of tRNA to amino acid. Each tRNA typically carries only one type of amino acid per molecule.