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Biotechnology - 52
The first field tests were conducted with which of the following genetically altered organism? A. bt Corn B. Vaccinia virus containing a gene from the rabies virus C. The flavrsavr tomato D. Strawberry seedlings sprayed with ice-minus bacteria The delayed ripening tomato was created by a biotechnologist who __________ a gene. A. altered B. silenced C. replaced D. relocated Antisense technology A. selectively blocks expression of a gene B. combines genetic material from different species C. combines organelles and cells...
Thời gian bắt đầu: Hôm nay lúc 14:51:10(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-
The first field tests were conducted with which of the following genetically altered organism?
A-
bt Corn
B-
Vaccinia virus containing a gene from the rabies virus
C-
The flavrsavr tomato
D-
Strawberry seedlings sprayed with ice-minus bacteria
2-
The delayed ripening tomato was created by a biotechnologist who __________ a gene.
A-
altered
B-
silenced
C-
replaced
D-
relocated
3-
Antisense technology
A-
selectively blocks expression of a gene
B-
combines genetic material from different species
C-
combines organelles and cells
D-
alters or transfers cells
4-
Antisense transgenic plants produced fruit that softened
A-
more slowly than the normal fruit
B-
more rapidly than the normal fruit
C-
as the normal fruits
D-
None of these
5-
Insect resistance in the transgenic plant has been achieved by
A-
transferring genes for Bt toxins
B-
transferring genes for protease inhibitors
C-
transferring genes for other insecticidal secondary metabolities
D-
All of the above
6-
Resistance to L-phosphinothrium in tobacco plants is developed by the transfer of
A-
gene for EPSPS (5-enol-pyruvyl shikimat 3 phosphate synthase)
B-
gene for ALS (acetolactate synthase)
C-
gene for GS (glutamine synthase)
D-
Any of the above
7-
A __________ is a small laboratory set up to simulate conditions of a particular environment.
A-
microcosm
B-
mibridization
C-
bioremediation
D-
rhizosecretion
8-
The roots of a plant are converted into drug-producing structures in a process called
A-
microcosm establishment
B-
mibridization
C-
bioremediation
D-
rhizosecretion
9-
ACC demainase gene is responsible for
A-
synthesis for ethylene
B-
degradation of ACC an immediate precursor to ethylene
C-
synthesis of polygalactouranase
D-
Both (a) and (b)
10-
Two genes from a bacterium (Alcaligenes eutrophus) and a cotton gene produce
A-
a plastic
B-
a vaccine against the bacterium
C-
a pharmaceutical product
D-
herbicide resistance
[ Thành Lãm - ST ]

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