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Two genes ‘A’ and ‘B’ are linked. In a dihybrid cross involving these two genes, the F₁ heterozygote is crossed with homozygous recessive parental type (aa bb). What would be the ratio of offspring in the next generation?
1. 1 : 1 : 1: 1
2. 9 : 3 : 3 : 1
3. 3 : 1
4. 1 : 1

Subtopic: Understanding Linkage |

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