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The colonies of recombinant bacteria app...

The colonies of recombinant bacteria apppear white in contrast to blue colonies of non-recombinant bacteria because of

A

Non - recombinant bacteria containing beta - galactosidase

B

Insertional inactivation of alpha - galactosidase in non - reacombinant bacteria

C

Insertional inactivation of alpha - galactosidase in recombinant bacteria

D

Inactivation of glycosidase enzyme in recombinant

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The correct Answer is:
A
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AAKASH SERIES-PRINCIPLES AND PROCESSES -Exercise - III (Previous AIPMT/NEET Questions)
  1. Which of the following restriction enzymes produces blunt ends?

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  2. The taq polymerase enzyme is obtained from

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  3. Which of the following is not required for any of the techniques of DN...

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  4. Which of the following is a restriction endonucleases?

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  5. Golden rice is a genetically modified crop plant where the incorporate...

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  6. An analysis of chromosomal DNA using Southern hybridization technique ...

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  7. In vitro clonal propagation in plants is charcterised by

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  8. Which vector can clone only a small fragment of DNA ?

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  9. DNA fragments generated by the restriction endonucleases in a chemical...

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  10. The colonies of recombinant bacteria apppear white in contrast to blue...

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  11. For transformation, micro- particles coated with DNA to be bombarded w...

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  12. There is a restriction endonuclease called Eco RI. What does 'co' part...

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  13. Agarose extracted from sea weeds finds use in

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  14. Which one of the following is used as vector for cloning genes into hi...

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  15. Which one of the following palindromic base sequences in DNA can be ea...

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  16. DNA or RNA segment tagged with a radioactive molecule is called

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  17. Restriction endonucleases are enzymes which

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  18. Polyethylene glycol method is used for :

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  19. Gel electrophoresis is used for

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  20. The linking of antibiotic resistance gene with the plasmid vector beca...

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