Biotechnology PYQs

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1. Prelims 2001Q124Biotechnology

   Assertion (A): Scientists can cut apart and paste together DNA molecules at will, regardless of the source of the molecules.

   Reason (R): DNA fragments can be manipulated using restriction endonucleases and DNA ligases.

   Which of the following is correct?

   aBoth A and R are individually true and R is the correct explanation of AbBoth A and R are individually true but R is NOT a correct explanation of AcA is true but R is falsedA is false but R is true
2. Prelims 2001Q130Biotechnology

   The American multinational company, Monsanto has produced an insect-resistant cotton variety that is undergoing field-trials in India. A toxin gene from which ONE of the following bacteria has been transferred to this transgenic cotton?

   aBacillus subtilisbBacillus thuringiensiscBacillus amyloliquifanciensdBacillus globli
3. Prelims 2000Q121Biotechnology

   Insect resistant cotton plants have been genetically engineered by inserting a gene from a/an

   avirusbbacteriumcinsectdplant
4. Prelims 2000Q122Biotechnology

   Hybridoma technology is a new biotechnological approach for commercial production of

   amonoclonal antibodiesbinterferoncantibodiesdalcohol
5. Prelims 2000Q128Biotechnology

   Assertion (A): “DNA Finger-printing” has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.

   Reason (R): Trace evidences such as hairs, saliva and dried semen are adequate for DNA analysis.

   aBoth A and R are true, and R is the correct explanation of AbBoth A and R are true, but R is not a correct explanation of AcA is true, but R is falsedA is false, but R is true
6. Prelims 1999Q111Biotechnology

   Indian farmers are unhappy over the introduction of “Terminator Seed Technology” because the seeds produced by this technology are expected to

   ashow poor germinationbform low yielding plants despite the high qualitycgive rise to sexually sterile plantsdgive rise to plants incapable of forming viable seeds
7. Prelims 1999Q129BiotechnologyAnswer disputed

   Assertion (A): Insect-resistant transgenic cotton has been produced by inserting Bt gene.

   Reason (R): The Bt gene is derived from a bacterium.

   aBoth A and R are true, and R is the correct explanation of AbBoth A and R are true, but R is not a correct explanation of AcA is true, but R is falsedA is false, but R is true
8. Prelims 1999Q130Biotechnology

   Assertion (A): Dolly was the first cloned mammal.

   Reason (R): Dolly was produced by in-vitro fertilization.

   aBoth A and R are true, and R is the correct explanation of AbBoth A and R are true, but R is not a correct explanation of AcA is true, but R is falsedA is false, but R is true
9. Prelims 1998Q116Biotechnology

   Which one of the following types of micro-organisms is most widely used in industries?

   aBacteriabBacteria and fungicBacteria and algaedBacteria, micro-algae and fungi
10. Prelims 1997Q63Biotechnology

    Which one of the following techniques can be used to establish the paternity of a child?

    aProtein analysisbChromosome countingcQuantitative analysis of DNAdDNA finger-printing
11. Prelims 1997Q127Biotechnology

    The sequencing of the entire genome (the totality of all genes) of an organism was completed in 1996. The organism was

    aalbino mousebyeastchuman beingdPlasmodium vivax