Human Genome: Gene Count & DNA Similarity — NEET Biology
📚 Practice Concept📖 NCERT Source
The total number of genes is estimated at 30,000–much lower than previous estimates of 80,000 to 1,40,000 genes. Almost all (99.9 per cent) nucleotide bases are exactly the same in all humans.
Practice This Concept
QuestionPractice Question
Assertion (A): All nucleotide bases are exactly the same in all humans. Reason (R): The 0.1% variation in human DNA sequences forms the basis of DNA fingerprinting.
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
Free to start · Hindi + English · 10,000+ questions · NEET 2026 pattern
Related Concepts from Molecular Basis of Inheritance