
25/4 Đề hóa sinh Nucleic acid
Authored by Minh Hai
Biology
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Enzyme nào không tham gia vào quá trình thoái hóa acid nucleic thành base nitơ?
Nucleotidase phosphatase
Nucleoside phosphorylase
Nucleoside phosphatase
Nuclease phosphodiesterase
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trình tự nào sau đây đúng khi nói về quá trình thoái hóa base purin:
Adenine → Inosine → Hypoxanthine → Xanthine → Uric acid
Guanine → Xanthine → Hypoxanthine → Adenine → Uric acid
Inosine → Hypoxanthine → Xanthine → Uric acid → Guanine
Guanosine → Inosine → Adenine → Xanthine → Uric acid
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Phản ứng nào không xảy ra trong quá trình thoái hóa base pyrimidin
Cytidin → Uridin
UMP → Uridin → Uracil
Uracil → Beta-alanine
Malonic semialdehyde → Malonyl-CoA
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cơ chế hoạt động của Allopurinol trong việc điều trị bệnh Gout
Ức chế enzyme nucleotidase
Ức chế enzyme guanine deaminase
Ức chế enzyme PNP
Ức chế enzyme xanthine oxidase.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tổng hợp purin không bao gồm nguyên liệu nào sau đây:
Folate (N10-formyl-THF)
Glycerol
Glutamine
Aspartate
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tổng hợp pyrimidine gồm mấy giai đoạn:
2
3
4
7749
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Enzyme nào đóng vai trò tháo xoắn phân tử DNA trong quá trình tổng hợp DNA?
DNA helicase.
DNA polymerase.
DNA ligase.
RNA primase.
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