The genotypic ratio obtained when a heterozygous tall plant (Tt) is crossed with itself is:

TT:tt = 1:3

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TT:Tt:tt = 1:3:4

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TT:Tt:tt = 1:2:1

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Tt:tt = 1:3

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Solution

The correct option is C TT:Tt:tt = 1:2:1
When a heterozygous plant is self crossed with itself in a monohybrid cross, the genotypic ratio obtained is TT:Tt:tt = 1:2:1.

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