下载APP
【单选题】
Which protein factor has the translocase enzyme activity in eukaryotes:( )
A.
eEF-2 protein factor
B.
eRF protein factor
C.
eIF-4B protein factor
D.
eIF-2 protein factor
举报
如何制作自己的在线小题库
参考答案:
参考解析:
刷刷题刷刷变学霸
举一反三
【单选题】The basic components of the PCR system does not include:( )
A.
dNTP
B.
thermal stable DNA polymerase
C.
template DNA
D.
NTP
查看完整题目与答案
【单选题】Which one is NOT a cis-acting element?( )
A.
silencer
B.
enhancer
C.
activator protein
D.
promoter
查看完整题目与答案
【多选题】The significance of H+ secretion in renal tubules is( )
A.
It is beneficial to maintain acid-base balance
B.
It is beneficial for K
+
reabsorption
C.
Facilitate the secretion of NH
3
D.
It is beneficial to HCO
3
-
reabsorption
E.
It is beneficial for Na
+
reabsorption
查看完整题目与答案
【多选题】Which of the statement about decompression reflex is correct( )
A.
Reflexes only result in lower blood pressure
B.
The efferent nerves are the sympathetic and vagus nerves
C.
The afferent nerves are the aortic and sinus nerves
D.
The center is located in the medulla oblongata
E.
The receptors are located in the carotid sinus and the aortic arch
查看完整题目与答案
【单选题】What is the order of lipoprotein from the cathode to anode?( )
A.
CM, pre-β lipoprotein, β lipoprotein, α lipoprotein
B.
CM, β lipoprotein, α lipoprotein, pre-β lipoprotein
C.
CM, β lipoprotein, pre-β lipoprotein, α lipoprotein
D.
CM, pre-β lipoprotein, α lipoprotein, β lipoprotein
查看完整题目与答案
【多选题】The functions of 5’ Cap of eukaryotic mRNA include( )
A.
acceleration of the adding of poly A tail.
B.
enhancement of the mRNA’s translatability;
C.
transport of the mRNA from nucleus to cytosol;
D.
protection of the mRNA from degradation;
查看完整题目与答案
【单选题】Which is not necessary as part of prokaryotic expression vector?( )
A.
Selectable markers
B.
Poly A signal
C.
Promoter
D.
Ribosome binding site
查看完整题目与答案
【判断题】The Okazaki fragment of eukaryotes is longer than that of prokaryotes.( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】The following changes promote oncogene activation, except ( )
A.
Translocation
B.
Amplification
C.
Mutation
D.
Loss of heterozygosity
查看完整题目与答案
【多选题】Which of the classes of RNA molecules is/are part of the process oftranslation?( )
A.
Small nuclear RNA
B.
Transfer RNA
C.
Messenger RNA
D.
Ribosomal RNA
查看完整题目与答案