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An antibiotic resistance gene in a vecto...

An antibiotic resistance gene in a vector usually helps in the selection of

A

competent cells

B

transformed cells

C

recombinant cells

D

None of these

Text Solution

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Selectable markers help in identifying and elminating non-transofrmants selectively permiting the growth of the transformation . The normal E, coli cells do carry resistance against any of these antiobiotics. Completant bacterial cells are no capable to take foreign DNA with chemical treatment, e.g., calcium chloride.
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NCERT EXEMPLAR-BIOTECHNOLOGY PRINCIPLES AND PROCESS-Biotechnology Principles And Process
  1. While isolating DNA from bacteria, which of the following enzymes is n...

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  2. Which of the following has popularised the PCR (polymerase chain react...

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  3. An antibiotic resistance gene in a vector usually helps in the selecti...

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  4. Significance of 'heat shock' method in bacterial transformation is to ...

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  5. The role of DNA ligase in the construction of a recombinant DNA molec...

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  6. Which of the following is not a source of restriction endonuclease ?

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  7. Which of the following steps are catalysed by Taq polymerase in a PCR ...

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  8. A bacterial cell was transformed with a recombinant DNA that was gener...

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  9. Which of the following should be chosen for best yield if one were to ...

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  10. Who among the following was awarded the Nobal Prize for the developmen...

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  11. Which of the following statements does not hold true for restriction e...

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  12. How is copy number of the plasmid vector related to yield of recombina...

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  13. Would you choose an exonuclease, while producing a recombinant DNA mol...

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  14. What does H in 'Hind' and III refer to the enzyme 'Hind III'?

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  15. Restriction enzymes should not have more than one site of action in th...

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  16. What does competent refer to in competent cells used in transformation...

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  17. What is the significance of adding proteases at the time of isolation ...

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  18. While doing a PCR, denaturation step is missed. What will be its effec...

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  19. Name a recomblnant vaccine that is currently being used in vaccination...

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  20. Do biomolecules (DNA and protein) exhibit biological activity in anhyd...

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