draw a labelles diagram of pbr322 explain the following. a. origin of replication. b. cloning vectors c. selectable markers

Dear student,
This is the structure of pBR322.( Cloning vector)



Cloning vector- It is used to selection of recombinants from non-recombinants, there are different cloning sites are there
Bam H1- site for tetracycline
Pvu I-         site for ampicillin 
Pst I-          site for ampicillin

Ori- Origin of replication is the site where replication starts and any piece of DNA, when linked to this sequence, can replicate.

Selectable marker-  Ori is a vector which requires a selectable marker to identify and eliminating nontransformants.
Genes encoding resistance to antibiotics such as ampicillin and tetracycline.

Regards
Meritnation

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