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In a Mendel MONOHYBRID cross, the F2 generation shows the phenotype ratio of:
A1 : 1 (equal in both forms)
B9 : 3 : 3 : 1 (dihybrid pattern)
C3 : 1 (dominant : recessive)
D2 : 1 (heterozygous : homozygous)
Answer & Solution
Correct answer: C. 3 : 1 (dominant : recessive)
The F2 phenotype ratio is 3 (dominant: TT + Tt) : 1 (recessive: tt). The genotype ratio is 1 TT : 2 Tt : 1 tt. 9:3:3:1 is the dihybrid ratio, not monohybrid.
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