$pBR322$ was the first artificial cloning vector developed in $...A...$ by $...B...$ and $...C...$ from $E. coli$ plasmid. Here $A, B$ and $C$ can be:

  • A
    $A-1976, B-Boliver, C-Rodriquez$
  • B
    $A-1975, B-Tiselius, C-Rodriquez$
  • C
    $A-1977, B-Boliver, C-Rodriquez$
  • D
    $A-1978, B-HO Smith, C-KW Wileox$

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