Clarify why test crosses are used in selective breeding.

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asked Sep 10, 2017 81.8k views

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Searene · Answer 1 · 2017-09-14T04:23:59+0000

A test cross can be used to determine the genotype of the parent (whether it is homozygous or heterozygous for a specific trait).
AA x aa = all Aa offspring, dominant phenotype.

Aa x aa = 1/2 Aa dominant and 1/2 aa recessive

Clarify why test crosses are used in selective breeding.

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