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  4. pBR322 vector carries genes for tetracycline and ampicillin resistance. A foreign DNA is ligated at the site of tetracycline resistance gene. Such vector is then introduced in E. coli. The transformants growing in ampicillin containing medium are then transferred on a medium containing tetracycline. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/biology/8b88c2dc4a5ddd0ef1a9fdd1e9d12620-.png /> Select the set of recombinant bacterial colonies

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Q. pBR322 vector carries genes for tetracycline and ampicillin resistance. A foreign DNA is ligated at the site of tetracycline resistance gene. Such vector is then introduced in $E$. coli. The transformants growing in ampicillin containing medium are then transferred on a medium containing tetracycline.
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Select the set of recombinant bacterial colonies

Biotechnology : Principles and Processes

Solution:

Correct answer is (b) B, C, E, H