本题目来源于试卷: Unity and Diversity A.2 Nucleic Acids，类别为 IB生物学
[单选题]
Which function and pro qs-h 8g; jimhv(p)q+w6nfhu0 r( qrr3cess a) ag6/a:h/oxmr9b/w5imrb s fre correctly matched in the table below?
A. Process is Replication;Function is Addition of the 5’ cap and poly-A tail to the 3’ end
B. Process is Transcription;Function is RNA polymerase adds nucleotides to the 3’ end of the growing mRNA strand
C. Process is Translation;Function is DNA polymerase adds nucleotides to the 3’ end of the primer
D. Process is Splicing;Function is Ribosome moves along the mRNA from the 5’ end to the 3’ end
参考答案: B
本题详细解析:
Choice B is correct ;24oa6 molk hey:rbx9 because RNA polymerase adds nucleotides to the 3’ end of the growing mRNA strand in transcription.Choice A is incorrect because the addition of the 5’ cap and poly-A tail takes place in splicing. Choice C is incorrect because the addition of nucleotides by DNA polymerase takes place during DNA replication. Choice D is incorrech oyl:rao6;b9x2e4km t because the movement of ribosomes along the mRNA takes place during translation.
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