NEET Zoology Recombinant DNA MCQ Question
Which combination of statements about recombinant DNA technology is correct?
Restriction enzymes cut DNA at specific sequences, and ligase is used to join DNA fragments.
Only bacterial cells can take up recombinant DNA through transformation methods.
Agarose gel electrophoresis is used to separate DNA fragments based on their size, and smaller fragments move slower.
Micro-injection is a method used to introduce recombinant DNA into animal cells, while biolistics is used for plant cells.
Correct Answer
Detailed Explanation
Statement A is correct as restriction enzymes cut DNA at specific sequences, and ligase is needed to join the fragments. Statement C is incorrect since smaller fragments move faster in gel electrophoresis, while statements B and D are misleading in their respective contexts.
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