Which one of the following options is a correct match of phenomenon and its explanation?

(1) Reverse Transacription PCR - Many copies of a DNA sequence.

(2) Central dogma - RNA DNA Protein RNA.

(3) RNA silencing - Use of ds-RNA to stop the expression of ss-RNA.

(4) Transcription - Process of formation of RNA & proteins.

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Which of following cartoon characters does not share its name with that of a gene?

(1) Tintin

(2) Popeye

(3) Asterix

(4) Obelix

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RNA interference is essential for the

(1) cell proliferation

(2) cell defence

(3) cell differentiation

(4) micropropagation

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Genetically modified (GM) crops can be produced by

(1) recombinant DNA technology

(2) somatic hybridization

(3) cross breeding

(4) micropropagation

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Which of the following genes do not occur naturally in living organisms?

(1) Bt genes

(2) RNAi genes

(3) Cry genes

(4) Endogeneous cytoplasmic defense genes

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Adenosine deaminase (ADA deficiency) could be permanently cure, if the gene isolated from marrow cells producing ADA is introduced into cell at

(1) early embryonic stages

(2) Late embryonic stages

(3) early childhood

(4) None of the above

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The first clinical gene therapy was given for treating

(1) diabetes mellitus

(2) chickenpox

(3) rheumatoid arthritis

(4) adenosine deaminase deficiency

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The source of taq polymerase used in PCR is a

(1) thermophilic fungus

(2) mesophilic fungus

(3) thermophilic bacterium

(4) halophilic bacterium

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The protein products of the  following Bt toxin genes cry I Ac and cry II Ab are responsible for controlling

(1) bollworm

(2) roundworm

(3) moth

(4) fruit fly

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Three critical research areas of biotechnology are:

I. Providing the best catalyst in the form of improved organism usually a microbe or pure enzyme

II. Multiple Ovulation Transfer Technology (MOET)

III. Creating optimal conditions through engineering for a catalyst to act.

IV. Downstream processing technologies

(1) I, II, III, IV      

(2) I, III, IV          

(3) I, II                 

(4) II and IV

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