The two antibiotic resistance genes on vector $pBR322$ are for

  • A
    Ampicillin and Tetracycline
  • B
    Ampicillin and Chloramphenicol
  • C
    Chloramphenicol and Tetracycline
  • D
    Tetracycline and Kanamycin

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The enzyme that is used in $PCR$ technology is:

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In genetic engineering,two bacteria are very useful. They are ......

The diagram below represents a schematic of recombinant $DNA$ technology. Which enzymes are responsible for the processes $P$ and $Q$ respectively?
$\quad\quad P\quad\quad\quad Q$

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