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Question : A pea plant homozygous for yellow round seed is crossed with its recessive parents . Calculate the phenotypic and genotypic ratio with the help of checker board .

Answer»

Solution :

Genotypic Ratio : `YYRR to 1`
`YYRr to 2`
`YyRR to 2`
`YyRr to 4`
`Yyrr to 1 `
`Yyrr to 2 `
`yy"RR"` to 1`
`yyRr to 2 `
`yyrr to1`.


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