Online Biotechnology Test - Biotechnology Test - Random

Instruction:

  • This is a FREE online test. Beware of scammers who ask for money to attend this test.
  • Total number of questions: 20.
  • Time allotted: 30 minutes.
  • Each question carries 1 mark; there are no negative marks.
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  • All the best!

Marks : 2/20


Total number of questions
20
Number of answered questions
0
Number of unanswered questions
20
Test Review : View answers and explanation for this test.

1.
The first therapeutic product formed by means of recombinant DNA technology is
human growth hormone
insulin
hepatitis B vaccine
vaccine for foot and mouth disease
Your Answer: Option
(Not Answered)
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2.
Lichen involves two organisms as
virus and bacteria
algae and bacteria
algae and fungi
fungi and mosses
Your Answer: Option
(Not Answered)
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3.
The cell membrane is made up of
lipoproteins
cellulose
phospholipids
phosphoproteins
Your Answer: Option
(Not Answered)
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4.
A widely accepted explanation for transport of sugar in phloem is called
root pressure theory
transpiration
pressure flow hypothesis
cytoplasmic streaming
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(Not Answered)
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5.
What is the approximate size (in kb) of the melon mitochondrial genome?
600 kilobase
1200 kilobase
2400 kilobase
3000 kilobase
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(Not Answered)
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6.
Protoplasts can be produced from suspension cultures, callus tissues or intact tissues by enzymatic treatment with
cellulotyic enzymes
pectolytic enzymes
both cellulotyic and pectolytic enzymes
proteolytic enzymes
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(Not Answered)
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7.
What is/are the benefit(s) of micropropagation or clonal propagation?
Rapid multiplication of superior clones
Multiplication of disease free plants
Multiplication of sexually derived sterile hybrids
All of the above
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(Not Answered)
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8.
Which is/are the disadvantage/(s) of using IAA in plant cell culture media?
It is unstable in solution
Gets easily oxidized
Conjugated to inactive form by plant cells
All of the above
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(Not Answered)
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9.
What is 'nurse' or conditioned medium?
It is the media full of growth factors used for the growth of cells
It is the medium added to nurse the callus culture
Both (a) and (b)
It is the liquid medium removed from the suspension of fast growing cells
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(Not Answered)
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10.
Nitrogen in the plant cell culture media is provided by either ammonia or nitrate salt. In the media
utilization of ammonium cause culture pH to drop while utilization of nitrate cause culture pH to rise
utilization of nitrate cause culture pH to drop while utilization of ammonium cause culture pH to rise
utilization of both ammonium and nitrate result in rise in pH
utilization of both ammonium and nitrate result in drop in pH
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(Not Answered)
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11.
Crown gall tissue
can be cultivated in vitro in absence of bacteria
retains tumorous properties when cultivated
both (a) and (b)
shows tumorous properties only in presence of bacteria
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(Not Answered)
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12.
Human serum albumin in case of transgenic plant is secreted in
transgenic leaf tissues
transgenic root tissues
is not secreted out of plant
transgenic stem tissues
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(Not Answered)
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13.
A cross shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of
translocation heterozygote
deficiency
haploid organism
duplication
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(Not Answered)
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14.
Cells which no longer divide (such as certain specialized cells found in the human brain) remain in which phase of the cell cycle?
Prophase
S phase
G0 Phase
Gl Phase
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15.
Which of the following is correct?
ECL can be established in suspension cultures whereas it is exceptional for primary cell lines (PCL)
ECL and PCL can be established in suspension cultures
PCL can be established in suspension cultures
none of the above
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16.
Yeast Replicating plasmids (YRp) carry
centromere
telomere
autonomously replicating sequence
both (a) and (c)
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(Not Answered)
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17.
The number of follicles at any particular stage is governed by
the rate of entry of dormant follicles
the rate of growth of follicles
the rate of loss of follicles
all of the above
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(Not Answered)
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18.
How is air supply to the fermentor sterilized?
By heat filtration
Filtration through fibrous material
Filtration through granular material
All of the above
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(Not Answered)
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19.
Cider vinegar is produced from
fruit juices
malted grain
ethanol
ale
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(Not Answered)
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20.
During which phase of growth of Penicillium chrysogenum maximum antibiotic production takes place
during the first phase
during the second phase
during the third phase
same in all the phases
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(Not Answered)
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