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Ampicillin is ....

Ampicillin is _____.

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antibiotics
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If a recombinant DNA bearing gene for resistance to antibiotic ampicillin is transferred to E.coli cells, the host cells become transformed into ampicillin resistant cells. If such bacteria are transferred on agar plates containing ampicillin, only transformants will grown and the untransformed recipient cells will die. The ampicillin resistant gene in this case is called as 1) selectable marker 2) recombinant protein 3) cloning site 4) chemical scalpels

What does the ampicillin-resistant gene act as ?

The gene 'rop' present in pBR322 cloning vector, codes for 1) the proteins involved in the translation 2) the proteins involved in the replication of the plasmid 3) the proteins involved in the synthesis of ampicillin only 4) the proteins involved in the synthesis of tetracycline only

Explain, how to find whether an Ecoli bacterium has transformed or not, when a recombinant DNA bearing ampicillin-resistance gene is transferred into it.

Read the following statements and select the incorrect ones. (i) When the transformed cells on agar plates containing ampicillin are spread, both transformed and untransformed cells will grow. (ii) Restriction enzymes are used in isolation and separation of DNA from other macromolecules. (iii) Downstream processing is one of the steps of rDNA technology. (iv) Disarmed pathogen vectors are also used in transfer of rDNA into the host. a) (i) and (iii) b) (iii) and (iv) c) (i) and (iii) d) (i) and (ii)