In Recombinant DNA technology,antibiotics are | vedclass

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(A) In Recombinant $DNA$ $(RDT)$ technology,antibiotics serve two primary purposes: $1$. They act as selectable markers to identify and eliminate non-

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As selectable markers

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(A) In Recombinant $DNA$ $(RDT)$ technology,antibiotics serve two primary purposes: $1$. They act as selectable markers to identify and eliminate non-transformants,allowing only the growth of transformants. $2$. They are added to the culture medium to keep it free from unwanted bacterial contamination. While the primary role in cloning vectors is as a selectable marker,the context of the question often refers to their use in maintaining sterile culture conditions. However,based on standard $NCERT$ curriculum,antibiotics are primarily defined as selectable markers. Given the provided options,option $A$ is the most scientifically accurate role in the context of vector design.

In Recombinant $DNA$ technology,antibiotics are used:

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