Question 1

In plant biotechnology, root tumours are induced in plant using the bacterium :

Accepted Answer

Correct answer is A

Question 2

Lal Bahadur Shastri biotechnological centre is in :

Accepted Answer

Correct answer is C

Question 3

Human insulin is being commercially produced from a transgenic species of:

Accepted Answer

Correct answer is C

Question 4

Which of the following is/are true?

Accepted Answer

Correct answer is B

Question 5

Monoclonal antibodies are produced from hybrid cells called hybridomas. The cells employed to obtain these hybridoma cells, are:

Accepted Answer

Correct answer is A

Question 6

Which of the following has been covered under the broad patent category?

Accepted Answer

Oryza has been covered under broad patent category.

Question 7

Gray biotechnology' is referred to :

Accepted Answer

Correct answer is B

Question 8

Dextran is used in :

Accepted Answer

Dextran is a complex polysaccharide and dextran plays an important role in plasma transfusions.

Question 9

Utility of fungi for steroid conversion was demonstrated by:

Accepted Answer

Rhizopus stolonifer is capable of hydroxylation, necessary for steroid synthesis, (Murray and Peterson 1950 ).

Question 10

Humulin is:

Accepted Answer

The first commercial example of enzyme modification of a protein for human use is the conversion of pig insulin to human insulin called "humulin".

Question 11

Which of the following established the scientific basis of vaccination?

Accepted Answer

The process of inoculation of vaccine is known as vaccination and Louis Pasteur (1850) is responsible for understanding the basis of vaccination.

Question 12

Hybridomas are employed for :

Accepted Answer

Monoclonal / Magic antibodies are pure antibodies against a particular antigen which are obtained through Clonal culture of hybridoma.

Question 13

Cells obtained from cancerous tumours are known as :

Accepted Answer

Correct answer is B

Question 14

Kohler and Milstein developed biotechnology for the production of:

Accepted Answer

In biotechnology monodonal antibodies (Mabs) are the specialize antibodies, which are specific to only one type of antigen. The concept of monodonal antibodies was put forward by Georges kohler and Cesal Milstein in 1974 .

Question 15

Which one of the following pairs is not correctly matched ?

Accepted Answer

Interferons are antiviral proteins which were produced by "Charles Weismann" (1980) by recombinant DNA technology in E. colt.

Question 16

Nuclear transplantation technique was discovered by :

Accepted Answer

Correct answer is A

Question 17

Secondary metabolite is :

Accepted Answer

The chemical compounds which are produced as byproducts of cellular metabolism and are not essential for the survival and growth of organisms, which produce them are called secondary metabolites e.g., alkaloids, steroids, tannis, cesins, antibiotic etc.

Question 18

In which field application of biotechnology occurs?

Accepted Answer

Correct answer is D

Question 19

Biopiracy is related to :

Accepted Answer

Correct answer is D

Question 20

A genetically engineered micro-organism used successfully in bioremedication of oil spills is a species of :

Accepted Answer

Correct answer is A

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Solution for Class 12, Biology, Biotechnology and its Applications

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