Viral genome incorporated into host DNA is called from Biology B

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 Multiple Choice QuestionsMultiple Choice Questions

191.

The sequence given below 5'-GGCC-3' is recognition sequence for which of the following enzyme

  • Not 1

  • Eco R1

  • Hae III

  • Puv I


192.

Paul berg's gene splicing experiment created the first rDNA molecule, which was a

  • T4 phage fragment incorporated into SV40 vector

  • Lambda phage fragment incorporated into SV40 vector

  • T4 phage fragment incorporated into pSC 101 vector

  • Lambda phage fragment incorporated into pSC 101 vector


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193.

Viral genome incorporated into host DNA is called

  • prophase

  • plasmid

  • prophage

  • bacteriophage


C.

prophage

After infecting the bacterium, the virus can follow lysogenic cycle in which bacterial DNA is not destroyed, instead the viral DNA is incorporated into it and attached to the bacterial DNA in a specific manner and replicates along with this. Bacteria which carry a provirus are called lysogenic bacteria. In this condition the viral DNA is transmitted to the progeny of bacteria such a virus is known as provirus are prophage.


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194.

Recognition sequence in Eco RI is

  • GGCC

  • GAATTC

  • AAGCTT

  • CTGCAG


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195.

In lysogenic phase which of the following takes place?

  • Phage DNA integrated with host genome and does not multiplied

  • Phage DNA does not integrate with host genome

  • Phage DNA integrates with host genome and bacterial cell does not lyse

  • Phage DNA integrated with host DNA and multiplied


196.

Science of engineering and technology applied to life sciences is

  • Biotechnology

  • Genetic engineering

  • Pathology

  • Biological science


197.

Plasmid is

  • small extrachromosomal circular self replicating DNA that can carry genes into host organism

  • bacteriophage

  • DNA found in mitochondria

  • DNA incorporated in bacterial chromosome


198.

e -DNA is formed from m-RNA by which enzyme:

  • restriction endonuclease

  • reverse transcriptase

  • DNA polymerase

  • RNA polymerase


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199.

Hybridoma technology is used to :

  • kill the cancer cells

  • formation of somaclonal antibodies

  • formation of somatic hybrids

  • formation of antibiotics


200.

Kohler and Milstein developed biotechnology for :

  • monoclonal antibodies

  • steroid synthesis

  • immobilization of enzymes

  • myeloma


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