NEET Zoology Recombinant DNA MCQ Question
Which of the following combinations correctly describe aspects of recombinant DNA technology?
Recombinant DNA can be introduced into bacteria via heat shock; chromogenic substrates indicate successful transformation.
Insertional inactivation cannot be used for selection; DNA fragments are not separated by gel electrophoresis.
Micro-injection is the only method to introduce recombinant DNA into animal cells; plasmids do not carry selectable markers.
Recombinant DNA is always amplified using non-thermostable polymerases; agarose gel is ineffective for fragment separation.
Correct Answer
Detailed Explanation
Option A correctly states that recombinant DNA can be introduced into bacteria using heat shock and that chromogenic substrates can indicate successful transformation by producing colored colonies. Other options contain inaccuracies regarding the methods and principles of recombinant DNA technology.
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