Which of the following statements gives a correct explanation for the use of vec

MCQ Practice

Which of the following statements gives a correct explanation for the use of vectors containing drug resistance genes in the cloning of recombinant DNA (cDNA) molecules?

Subject: Biotechnology EngineeringTopic: Methods And Techniques In Applied Biology

The products of the drug resistance genes protect the cDNA from destruction by the host cells

The drug resistance genes provide additional base sequences that enable the vector to accommodate larger inserts of cDNA

Entry of the vector containing the cDNA and the drug resistance genes into the host cell renders the latter identifiable as it is now resistant to antibiotic drugs

The cloned cDNA imparts drug resistance upon any cellular system with which it is used

Correct Answer: C

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Which of the following statements gives a correct explanation for the use of vectors containing drug resistance genes in the cloning of recombinant DNA (cDNA) molecules?

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