MCQ
Selective markers in plasmids are used to:
- AIdentify cancer cellsI
- Bdentify antibiotics
- CIdentify recombinants from non recombinants
- DNone of these
Explanation:
Due to the presence of the selective marker, the plasmid becomes useful for the cell. Under the selective conditions, only cells that contain plasmids with the appropriate selectable marker can survive. Thus it helps in identifying the recombinants from non-recombinants.
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Reason : Haemophilia occurs due to mutation of a structural gene on chromosome $15$.
$II.$ The bacteria should be made competent toaccept the $DNA$ molecule.
The Correct option regarding the above statements is
| Column $I$ | Column $II$ |
| $A$. Recombinant $DNA$ | $1$. Sea weeds |
| $B$. Gel electrophoresis | $2$. DNA staining |
| $C$. Ethidium bromide | $3$. Plasmid DNA that hasincorporated human DNA |
| $D$. Agarose | $4$. Process by which DNA fragments are separated based on their size |