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 polypeptidiz*tu1tjw2 vufu7e;6sj -( bvk,nv o5 einmu0-id8:, nwqi 7-nnv6 hzd sequence from a sequence of bases in the mRNA molecule. Explain how a polypeptide chain elongates as the ribosome movz7 idhw v-0:8nm-,6unin qdines 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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