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Choose the correct statement....

Choose the correct statement.

A

Presence of more than one recognition site for one enzyme, within a vector, generate several fragments, which will complicate gene cloning.

B

Ligation of alien DNA is carried out at a restriction site present in 'ori'.

C

In pBR322 one antibiotic resistance gene helps in the selection of transformants, whereas the other helps in cloning.

D

Rop helps in identificaiton of transformed cells.

Text Solution

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The correct Answer is:
A
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