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]
II. Explain why a point mutation of CAU0 2wsrb/ -aas tn:ocsn5y4 ttwcu7kh a:u w5,9 to CAG would caw m6uqju 0e 18pqv5bq4use a change in the polypeptide sequence of a protein but a point mutation of CA u j85bmeqwq 6q10u4pvU to CAC would not cause any change in the polypeptide sequence.
参考答案: CAU is the codon for histone/His.
CAC is also a codon for histone/His.
CAG is the codon for glutamine/Gln/a different amino acid.
The genetic code is degenerate/more than one codon can be translated to the same amino acid. (Accept alternative phrasing)
本题详细解析:
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