In a cross between red kernelled and whi...

In a cross between red kernelled and white kernelled varieties of wheat showing polygenic inheritance, the phenotypic ratio in `F_(2)` generation will be ……. .

1 : 6 : 15 : 20 : 15 : 6 : 1

1 : 4 : 6 : 4 : 1

`1 : 2 : 1`

`2 : 1`

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