Start learning →

In a monohybrid cross of Tt × Tt, the F2 PHENOTYPIC ratio is:

A$1:2:1$
B$9:3:3:1$
C$3:1$
D$1:1$
Answer & Solution
Correct answer: C. $3:1$
Monohybrid F2 phenotypic ratio = 3:1 (3 dominant : 1 recessive). Genotypic ratio is 1:2:1 (TT:Tt:tt). 9:3:3:1 is dihybrid F2; 1:1 is test cross result.
Practise this question with Quill — AP Intermediate 2nd Year →

Keep practising Genetics and Evolution

Browse all Genetics and Evolution questions for AP Intermediate 2nd Year, or explore more Biology topics.

Start a Genetics and Evolution lesson →
Related questions
Genotype and phenotypeDominant or recessive?NEET · Bio · Principles of Inheritance · Mendel's LawsThe Miller-Urey experiment (1953) demonstrated that:The Human Genome Project (HGP) ran from 1990 to:The Lac Operon in E. coli is INDUCED (turned ON) by the presence of:The genotypic ratio in the F₂ of a monohybrid cross between Tt × Tt isDNA base pairing.