Dihybrid Cross 9:3:3:1 Ratio — NEET Biology
📚 Practice ConceptThe ratio of 9:3:3:1 can be derived as a combination series of 3 yellow: 1 green, with 3 round: 1 wrinkled. This derivation can be written as follows:
Match List – I with List – II. (NEET 2023) List – I (A) Monohybrid Cross (B) Dihybrid Cross (C) Incomplete dominance (D) Test Cross List – II (I) 1 : 1 (II) 1 : 2 : 1 (III) 3 : 1 (IV) 9 : 3 : 3 : 1
View solution & NCERT explanation
Correct answer: A — (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
Monohybrid Cross (A): F₂ phenotypic ratio is 3:1 → (III) Dihybrid Cross (B): F₂ phenotypic ratio is 9:3:3:1 → (IV) Incomplete Dominance (C): F₂ phenotypic ratio is 1:2:1 → (II) Test Cross (D): For a heterozygote crossed with a homozygous recessive, phenotypic ratio is 1:1 → (I)
What does NCERT say about ratio 9331 can be?
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.