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Two genes A and B are linked in a dihybr...

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

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Test cross. It is used to test whether an Individual is Homozygous (pure) or Heterozygous (hybrid).
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