生物化学章节测试课后答案2024秋

第九章单元测试

1. The template strand of DNA is 5’-ATTCAG-3’, its transcript is（ ）.

A:5’ -CTGAAT-3’ B:5’ -CUGAAU-3’ C:5’ -UAAGUC-3’ D:5’ -GACTTA-3’
答案:5’ -CUGAAU-3’

2. The operon model proposes three elements, EXCEPT（ ）.

A:A set of structural genes B:An operator site C:SD sequence D:A regulator gene
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3. The RNA polymerase holoenzyme of prokaryotes is composed of several subunits, such as α₂ββω（ ）.

A:对 B:错
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4. Most mRNAs of eukaryotes are polycistron, while most mRNAs of prokaryotes are monocistron（ ）.

A:错 B:对
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5. List the similarities and differences between transcription and replication.


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