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Biotechnology - 56
Pollination is the process by which plants transfer male sex cells from one plant to another. How does the nucleus of the male cell reach the female cell? A. It travels on the legs of bees and sticks to the egg cell B. The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell C. It blows in the wind D. None of the above When a gardener takes a cutting from a plant, indicating that he has made a A. clone B. mutation C. new species D. new variety Single stranded circular RNA encapsidated with a larger RNA in a plant virus is A. a virion B. a viroid C. a virusoid.....
Thời gian bắt đầu: Hôm nay lúc 02:01:02(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-
Pollination is the process by which plants transfer male sex cells from one plant to another. How does the nucleus of the male cell reach the female cell?
A-
It travels on the legs of bees and sticks to the egg cell
B-
The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell
C-
It blows in the wind
D-
None of the above
2-
When a gardener takes a cutting from a plant, indicating that he has made a
A-
clone
B-
mutation
C-
new species
D-
new variety
3-
Single stranded circular RNA encapsidated with a larger RNA in a plant virus is
A-
a virion
B-
a viroid
C-
a virusoid
D-
None of these
4-
Microarray analysis involves biological assays based on
A-
gels
B-
filters
C-
purification columns
D-
small glass chips
5-
Which of the following is correct about micro biosensors?
A-
Implantation in human body and are suitable for in-vivo measurements
B-
Can be integrated on one chip and are useful for measuring various substrates in a small amount of sample solution simultaneously
C-
It is possible to develop disposable transducers for biosensors through mass production
D-
All of these
6-
When farmers breed new plants they choose the pollen from one variety of plant and place it onto the stigma of another variety of plant. This type of plant breeding is known as
A-
selective breeding
B-
pollination
C-
seed collection
D-
cuttings
7-
The inosine and hypoxanthine can be determined simultaneously by using
A-
inosine sensor
B-
inosine and hypoxanthine sensor
C-
amorphous silicon ISFET
D-
urea sensor
8-
An ordered array is any collection of analytical elements configured in
A-
randomly
B-
rows and columns
C-
circle
D-
None of these
9-
The disorder in which of the following may cause "Ehlers-Danlos Syndrome"?
A-
Dlashin protein
B-
Collagen protein
C-
Fibrin protein
D-
Globulin protein
10-
Which of the protein is involved in Alzheimer's disease?
A-
A4
B-
Amylin
C-
Fibrin
D-
Alzhemin
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