T.H. Morgan's Contributions to Genetics — NEET Biology
📚 Practice ConceptBriefly mention the contribution of T.H. Morgan in genetics.
Assertion (A): Gene linkage affects the inheritance patterns observed in genetic crosses. Reason (R): Linkage results from chemical attraction between genes preventing their independent assortment.
View solution & NCERT explanation
Correct answer: A — If both assertion and reason are true and the reason is the correct explanation of the assertion.
NCERT confirms linkage affects inheritance patterns (Assertion true). However, NCERT states “Morgan attributed this due to the physical association or linkage of the two genes” - the Reason falsely claims chemical attraction rather than physical association, making it false. Tests understanding that linkage is positional, not chemical.
What does NCERT say about Briefly mention contribution TH?
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.