2024知到答案 Medical Biochemistry（温州医科大学） 最新智慧树满分章节测试答案
第一章 单元测试
文章目录
1、单选题：
Which set of amino acids can absorb 280 nm UV light? （ ）
选项：
A:Glu & Asp
B:Met & Cys
C:Thr & His
D:Trp & Tyr
E:Cys & His
答案: 【Trp & Tyr】
2、单选题：
Which of the following amino acids is involved in the formation of disulfide bridge?（ ）
选项：
A:tryptophan
B:methionine
C:hydroxyproline
D:Cysteine
E:tyrosine
答案: 【Cysteine】
3、单选题：
The formation of protein secondary structure is mainly dependent on（ ）
选项：
A:hydrophobic packing
B:base-stacking interaction
C:peptide bond
D:hydrogen bond
E:disulfide bond
答案: 【hydrogen bond】
4、单选题：
Essential of protein denaturation is （ ）
选项：
A:rupture of hydrogen bonds
B:damage of primary structure
C:rupture of disulfide bond
D:break of non-covalent bonds
E:break of peptide bonds
答案: 【break of non-covalent bonds】
5、单选题：
The amino acid which does not exist in natural proteins is （ ）
选项：
A:methionine
B:citrulline
C:cysteine
D:glycine
E:lysine
答案: 【citrulline】
第二章 单元测试
1、单选题：
The base is found in mRNA but not in DNA is （ ）
选项：
A:G
B:A
C:T
D:C
E:U
答案: 【U】
2、单选题：
If the content of adenine is 15% in a DNA double helix, that of cytosine is （ ）
选项：
A:35%
B:15%
C:55%
D:85%
E:75%
答案: 【35%】
3、单选题：
Which of the following statements about nucleosome structure is correct? （ ）
选项：
A:Nucleosomes permit efficient packing of DNA to about one seventh its normal volume.
B:The major histones comprising nucleosomes are H1 and H4.
C:All of the above.
D:Nucleosomes are spherical structures comprised of RNA, nonhistone proteins and histone proteins.
E:The histone associated with the DNA in the linker region holding nucleosomes is called H2A.
答案: 【Nucleosomes permit efficient packing of DNA to about one seventh its normal volume.】
4、单选题：
The codon in mRNA reversely complementary pairing with anti-codon UGC in tRNA is （ ）
选项：
A:AUG
B:ACG
C:GCT
D:GCA
E:TCG
答案: 【GCA】
5、单选题：
The 5′end of mRNA in most eukaryotes has （ ）
选项：
A:-CCA sequence
B:SD sequence
C:initiation codon
D:Cap structure
E:poly A tail
答案: 【Cap structure】