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Biotechnology - 14
T-DNA transfer and processing into plant genome requires products of which of the following genes? A. vir A,B B. vir G,C C. vir D,E D. All of these Because of large size of Ti-plasmid, intermediate vectors (IV) are developed in which T DNA has been subcloned into A. pBR 322 based plasmid vector B. pRK 2013 C. pRN 3 D. Sll of these... The transfer of intermediate vectors into Agrobacterium are brought about by A. transformation B. biparental mating C. triparental mating D. transduction....
Thời gian bắt đầu: Hôm nay lúc 14:55:09(Server time)
Số câu hỏi: 10.   Tổng điểm: 10
Thời gian làm bài: 20 phút.  Thời gian còn lại: 
Cỡ chữ câu hỏi:  Cỡ chữ đáp án:
1-
T-DNA transfer and processing into plant genome requires products of which of the following genes?
A-
vir A,B
B-
vir G,C
C-
vir D,E
D-
All of these
2-
Because of large size of Ti-plasmid, intermediate vectors (IV) are developed in which T DNA has been subcloned into
A-
pBR 322 based plasmid vector
B-
pRK 2013
C-
pRN 3
D-
All of these
3-
The transfer of intermediate vectors into Agrobacterium are brought about by
A-
transformation
B-
biparental mating
C-
triparental mating
D-
transduction
4-
In response to the activating signal molecule, an endonuclease is produced that causes nicks in the T-DNA. It is encoded by
A-
vir A
B-
vir C
C-
vir B
D-
vir D
5-
Microinjection involves
A-
injection of large amount of DNA
B-
injection of DNA into bigger cells
C-
injection with needle having diameter greater than cell diameter
D-
All of the above
6-
Which of the following are used as selection marker for the cells transformed with Agrobacterium?
A-
Neomycin phosphotransferase
B-
Streptomycin phosphotransferase
C-
Hygromycin phosphotransferase
D-
Any of the above
7-
Vir genes required for the T-DNA transfer and processing are located
A-
on the T-DNA
B-
outside the T-DNA region
C-
on the plant genome
D-
None of these
8-
Plant transformation vectors based on Agrobacterium can generally be divided into
A-
two vectors
B-
four vectors
C-
six vectors
D-
eight vectors
9-
Which of the following has been confirmed on sugarcane genotypes?
A-
Bacilliform virus
B-
Cytomegalovirus
C-
Varicella-zoster virus
D-
Erythrovirus
10-
Involvement of sugarcane phytoalexins in red-hot resistance has been observed. The phytoalexin compound is reported to be
A-
3-deoxyanthocyanidin
B-
luteolinidin
C-
apigeninidin
D-
5-0 apigeninidin
[ Thành Lãm - ST ]

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