Gene Inactivation and Recombinant Selection — NEET Biology
🔥 Predicted for NEET 2027📖 NCERT Source
Gene gets 'inactivated due to insertion' of alien DNA, and helps in selection of recombinants.
Why This May Be Tested in NEET 2027
Adjacent to a frequently-asked paragraph in the same chapter.
Practice This Concept
QuestionPredicted for NEET 2027
Plasmid pBR322 has a PstI restriction enzyme site within gene ampR that confers ampicillin resistance. If this enzyme is used for inserting a gene for β-galactosidase production and the recombinant plasmid is inserted in an E. coli strain: (NEET 2021)
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90of the NEET 2026 Biology paper matched from the MedicNEET question bank
MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.
88 of 90 NEET 2026 Biology questions traced to MedicNEET10,000+ Biology questionsHindi + English
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