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A and B are semi-dominant alleles that make equal contributions (each = 1) to a quantitative...

A and B are semi-dominant alleles that make equal contributions (each = 1) to a quantitative phenotype. Individuals that are aa bb have the minimum amount of phenotype (= 0), and individuals that are AA BB have the maximum amount of phenotype (= 4). Which of the following crosses will produce offspring with larger phenotypic variance? (Assume independent assortment and no environmental variance).

Group of answer choices

AA bb X aa BB

Aa Bb X Aa Bb

There will be no difference between the above options

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