The $...A...$ are the $DNA$ molecules that can carry a foreign $...B...$ segment into the host cell. Here $A$ and $B$ refer to:

  • A
    $(A)-$ $Vector$,$(B)-$ $RNA$
  • B
    $(A)-$ $Vector$,$(B)-$ $DNA$
  • C
    $(A)-$ $Gene$,$(B)-$ $RNA$
  • D
    $(A)-$ $Gene$,$(B)-$ $DNA$

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Restriction endonucleases:

$c-DNA$ can be formed by

Which of the following is $NOT$ true for a cloning vector?

Restriction enzymes are . . . . . . .

Match the following columns:
Column-$I$Column-$II$
$(a) \ Cla \ I$$(1) \ \text{Antibiotic resistance gene}$
$(b) \ pBR322$$(2) \ \text{Origin of replication}$
$(c) \ tet^R$$(3) \ \text{Restriction enzyme}$
$(d) \ ori$$(4) \ \text{Plasmid}$

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