分子生物学（Molecular Biology)答案2023秋

第一章测试

1. The Nucleic acid will get maximum UV absorbance at wavelength_____（ ）
A:280nm B:260nm C:270nm D:230nm
答案:B
2. The common component composed of DNA and RNA is _____（ ）
A:Guanine B:D-ribose C:D-2-deoxyribose D:Thymine
答案:A
3. The secondary structure of DNA is _____（ ）
A:α-helix B:double helix C:β-turn D:β-sheet
答案:B
4.

The corresponding anticodon to codon ACG is___ （ ）

A:UGC B:CGU C:GCA D:CGT
答案:B
5. Single strand DNA 5’-CGGTA-3’ can anneal with the follow RNA _____（ ）
A:5’-GCCAU-3’ B:5’-TAGGC-3’ C:5’-UACCG-3’ D:5’-GCCAT-3’
答案:C
6. mRNA is used as _____ in translation.（ ）
A:None B:machinery C:adaptor D:template
答案:D
7. Amount of T in RNA is 0.25mol，so amount of A is_____. （ ）
A:1.00mol B:0.25mol C:0.75mol D:0.5mol
答案:B
8. tRNA in eukaryotic cell contains _____（ ）
A:5sRNA B:28sRNA C:18sRNA D:5.8sRNA
答案:ABCD
9. The base in DNA _____（ ）
A:A B:G C:T D:C
答案:ABCD
10. Stem-loop is a type of secondary structure not usually found in tRNA.（ ）
A:对 B:错
答案:A
11. All genomes are composed of RNA.（ ）
A:对 B:错
答案:B