A tall true breeding garden pea plant is...

A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the `F_(1)` plants were selfed the resulting genotypes were in the ratio of

`1:2:1`:: tall heterozygous: tall homozygous : dwarf

`3:1::` tall: dwarf

`3:1::` dwarf: tall

`1:2:1` :: tall homozygous: tall heterozygous: dwarf

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