Which restriction enzymes have recognition sites within the antibiotic resistance genes $amp^R$ and $tet^R$ in the plasmid $pBR322$?

  • A
    $EcoR I, Pvu II$ and $Cla I, Hind II$
  • B
    $Cla I, Hind II$ and $EcoR I, Pvu II$
  • C
    $BamH I, Sal I$ and $Pvu I, Pst I$
  • D
    $Pvu I, Pst I$ and $BamH I, Sal I$

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