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Biotechnology - 12
Which of the following is true about Agrobacterium tumefaciens? A. It causes crown gall disease of plants B. It infects gymosperms C. It infects dicotyledonous angiosperms D. All of the above In the liposome mediated gene transfer in plants, nucleic acids are A. protected from nuclease digestion B. stable in liposomes C. both (a) and (b) D. not stable in liposomes Advantage of microprojectile method over microinjection method for gene transfer in plants include A. intact cells are used B. method is universal in its application irrespective of all shape, size, type and presence or absence of cell wall.....
Thời gian bắt đầu: Hôm nay lúc 17:52:52(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-
Which of the following is true about Agrobacterium tumefaciens?
A-
It causes crown gall disease of plants
B-
It infects gymosperms
C-
It infects dicotyledonous angiosperms
D-
All of the above
2-
In the liposome mediated gene transfer in plants, nucleic acids are
A-
protected from nuclease digestion
B-
stable in liposomes
C-
Both (a) and (b)
D-
Not stable in liposomes
3-
Advantage of microprojectile method over microinjection method for gene transfer in plants include
A-
intact cells are used
B-
method is universal in its application irrespective of all shape, size, type and presence or absence of cell wall
C-
gene can be transferred to many cells simultaneously
D-
All of the above
4-
On Ti-plasmid T-region or T-DNA is flanked by a direct repeat of
A-
12 bp
B-
20 bp
C-
25 bp
D-
30 bp
5-
Agrobacterium tumefaciens is a
A-
gram (+) bacteria
B-
gram (-) bacteria
C-
a fungi
D-
a yeast
6-
Microprojectile method of gene transfer in plants involves delivery of DNA
A-
with the help of micromanipulator
B-
with the help of bolistics
C-
with the help of needles
D-
Any of the above
7-
Which of the following genes are constitutively expressed and control the plant induced activation of other vir genes?
A-
vir A and vir G
B-
vir C and vir D
C-
vir B and vir E
D-
vir A and vir B
8-
Integrated octopine T DNA occurs as
A-
single segment
B-
two segments
C-
three segments
D-
four segments
9-
Liposomes mediated gene transfer in plants involves
A-
plasmid DNA enclosed in a lipid bag
B-
fusion of liposomes with protoplast
C-
use of polyethylene glycol (PEG)
D-
All of the above
10-
Which of the following plant signal molecules regulate the expression of vir B, C, D and E in case of tobacco?
A-
Acetosyringone
B-
α-hydroxy syringone
C-
Both (a) and (b)
D-
None of these
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