本题目来源于试卷: SL/HL Topic D1.2 Protein synthesis,类别为 IB生物学
[问答题]
8. A ribosome produces a polypeptide sequence from a sequence of bases inroup yt2b)s9n q-c5 g6oaim9sbe83h v15 bkk +:5 tloum,2uew the mRNA molecu kobo, 9h aklv+e t5m1iw5u:sbe8m2 3ule. Explain how a polypeptide chain elongates as the ribosome moves along an mRNA molecule.
参考答案: Elongation is the formation of the polypeptide chain.
tRNA molecules are attached to (corresponding) amino acids.
The tRNA anticodon binds to the mRNA codon/codon/anticodon binding (in the ribosome).
The amino acid forms a peptide bond with the previous amino acid in the polypeptide chain.
The ribosome moves down the mRNA molecule.
The polypeptide elongates one amino acid at a time.
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