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Two gens 'A' and 'B' are linked . In a d...

Two gens 'A' and 'B' are linked . In a dihybrid cross involving these two genes the `F_(1)` heterozygote is corssed with homozygous recessive parental type (aa bb). What would be the ratio of offspring in the next generations

A

`1,1:1:1`

B

`9,3:3:1`

C

`3:1`

D

`1:1`

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D
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