Online Biotechnology Test - Biotechnology Test - Random

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Total number of questions: 20.
Time allotted: 30 minutes.
Each question carries 1 mark; there are no negative marks.
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1.

P1 cloning vector allow cloning of DNA of the length of

100 kbp

50 kbp

20 kbp

10 kbp

[#]

2.

M 13 is an example of

filamentous phage

single stranded DNA vector

both (a) and (b)

plasmid

[#]

3.

Cosmids lack

genes coding for viral proteins

origin of replication

marker genes coding for replication

cleavage site for the insertion of foreign DNA

[#]

4.

The two chains of insulin can be separated by detaching it from β-galactosidase using

hydrogen chloride

cyanogen bromide

peptidase

protease

[#]

5.

Which part of a plant contains the male sex cell?

Ova

Style

Stamen

Pollen

[#]

6.

Cellular metabolism is an example of

equilibrium metabolism

steady-state metabolism

a series of reactions occurring under standard conditions

a series of reactions that defy the second law of thermodynamics

[#]

7.

Plants absorb nitrates from soil and convert them into

urea

ammonia

nitrogen

none of these

[#]

8.

Which of the following bacteria genus is capable of oxidizing ammonia (NH₄)?

Nitrospina

Nitrobacter

Nitrosococcus

Nitrosobacter

[#]

9.

When F1 plants are crossed with homozygous recessive plants, it is known as

test cross

recessive cross

criss-cross

para-cross

[#]

10.

What is meant by 'Organ culture' ?

Maintenance alive of a whole organ, after removal from the organism by partial immersion in a nutrient fluid

Introduction of a new organ in an animal body with a view to create genetic mutation in the progenies of that animal

Cultivation of organs in a laboratory through the synthesis of tissues

The aspects of culture in community which are mainly dedicated by the need of a specified organ of the human body

[#]

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

[#]

12.

Bruise resistant tomatoes have been developed by the expression of antisense RNA against

glycerol 1 phosphate acyl transferase

polygalactouranase

ACC deaminase

Sucrose phosphate synthase gene

[#]

13.

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

[#]

14.

Which of the following mutant/(s) has/have increased amount of lysine and/or methionine in corn seeds?

Opaque-2

Sugary-1

Flory-2

All of these

[#]

15.

Klinefelter syndrome is a manifestation of which chromosome aneuploidy?

XXX

XYY

XXY

None of these

[#]

16.

The human fibroplast is a classical example of

stable primary cell lines

established cell lines

cell transformations

none of these

[#]

17.

Which of the following best describes artificial insemination?

Transplanting an embryo into the uterus

Fertilization of an egg in a test tube

Selectively breeding healthy animals

Taking the sperm and placing it directly

[#]

18.

Which of the following is used to check vortex and to improve aeration efficiency in a fermentor?

Impeller

Baffles

Sparger

All of these

[#]

19.

Spirit vinegar is produced from

fruit juices

malted grain

ethanol

ale

[#]

20.

At normal pH, penicillin remains in

aqueous phase

solvent phase

both (a) and (b)

precipitates

[#]

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