The function of the 'ori' site in a vector is to

  • A
    Initiate insertional inactivation
  • B
    Initiate replication
  • C
    Code for the proteins involved in the replication of the plasmid
  • D
    Initiate antibiotic resistance

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Who discovered that restriction enzymes have the capability of cutting $DNA$ strands in a particular fashion,which left what has become known as 'sticky ends' on the strands?

Discuss with your teacher and find out how to distinguish between (Any two):
$(a)$ Plasmid $DNA$ and Chromosomal $DNA$
$(b)$ $RNA$ and $DNA$
$(c)$ Exonuclease and Endonuclease

Which of the following enzymes are used to join bits of $DNA$?

$A$ single strand of nucleic acid ($DNA$ or $RNA$) tagged with a radioactive molecule is called:

Which of the following is used as a cloning vector in higher organisms?

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