An extrachromosomal $DNA$,which can be used as a vector in gene cloning is called:

  • A
    Transposon
  • B
    Intron
  • C
    Exon
  • D
    Plasmid

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Restriction enzymes may be used for:

Which technique is used to separate $DNA$ fragments?

$A$ student while extracting $DNA$ from $Aspergillus$ fungus uses . . . . . . enzyme to break open the cell wall.

Which of the following is used in genetic engineering?

The enzyme known as restriction endonuclease:

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