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Mention the p...

Question

Mention the phenotypic ratio of dihybrid cross in F₂-generation

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Solution

Dihybrid cross
The cross is performed by taking two pairs of contrasting characters at a time known as a dihybrid cross.
The F2 generation occurs by crossing the members of the F₁-generation offspring.
YR Yr yR yr
YR
YYRR
Yellow, Round
YYRr
Yellow, Round
YyRR
Yellow, Round
YyRr
Yellow, Round
Yr
YYRr
Yellow, Round
YYrr
Yellow, Wrinkled
YyRr
Yellow, Round
Yyrr
Yellow, Wrinkled
yR
YyRR
Yellow, Round
YyRr
Yellow, Round
yyRR
Green, Round
yyRr
Green, Round
yr
YyRr
Yellow, Round
Yyrr
Yellow, Wrinkled
yyRr
Green, Round
yyrr
Green, Wrinkled
The phenotypic ratio in F₂-generation is 9:3:3:1

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