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Due to difficulty in inactivation of ant...

Due to difficulty in inactivation of antibiotics, alternate selectable markers developed to differentiate recombinants from non-recombinants on the basic of ability to

A

Produce bright orange colour in the prsence of a chromogenic substrate

B

Produce colour in the presence of a chromogenic substrate

C

Produce blue colour colonies due to insetional inactivation

D

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The correct Answer is:
B
Due to difficulty in inactivation of antibiotics, altermate selectable markers developed to differentiate recobinants from non-recombinants on the basis of ability to produce colour in the presence of a chromogenic substrate
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A2Z-BIOTECHNOLOGY: PRINCIPLES AND PROCESSES-Section A: Topicwise Questions (topic 2: Tools Of Tecombinant Dna Technology) Trestriction Enzymes ,
  1. When a recombinant dNA is inserted within the coding sequencing of an ...

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  2. In the E.coli cloning vector pBR 322, the number of selectable marker ...

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  3. Due to difficulty in inactivation of antibiotics, alternate selectable...

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  4. After the fragmentation by restriction endonuclease enzyme, the fragme...

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  5. In a chromosome there is a specific DNA sequence which is responsible ...

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  6. The separated bands of DNA are cut out from the agarose gel and extrac...

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  7. Restriction enzymes belong to a larger class of the enzyme called

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  8. In pBR 322, how many recognition sites are present ?

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  9. Presence of more than one recognition sites within the vector will

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  10. The stickiness of DNA ends faciliates the action of which enzyme

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  11. Ori is the some specific sequence in the vecotr pBR 322. Ori also has ...

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  12. In pBR 322, recognition segqences, that are present on the same type o...

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  13. The following figure shows

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  14. Restriction endonucleases used widely in RDT are obtained from

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  15. Construction of recombinant DNA involves

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  16. Identify the vector suitable for cloning long DNA fragments

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  17. Nucleic acid is fragmented by enzyme

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  18. Tumor inducing (Ti) plasmid transforms :

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  19. Restriction endonucleases are

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  20. Plasmids are used as vectors in genetic engineering because of their

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