DNA Fingerprinting and Genetic Diversity — NEET Biology
📚 Practice ConceptCurrently, many different probes are used to generate DNA fingerprints.
Assertion (A): Chromatin exists in different forms with varying transcriptional activity. Reason (R): Euchromatin is transcriptionally inactive while heterochromatin is transcriptionally active.
View solution & NCERT explanation
Correct answer: C — If assertion is true but reason is false.
NCERT describes different chromatin forms with different activities, making the Assertion true. However, NCERT explicitly states “Euchromatin is said to be transcriptionally active chromatin, whereas heterochromatin is inactive” - the Reason reverses these activities, making it false.
What does NCERT say about Currently many different probes?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.