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Test cross is used to identify whether t...

Test cross is used to identify whether the plant is homozygous or heterozygous. Justify this statement.

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To test the purity of the plant, subject the doubted plant for test cross. If the doubted plant is homozygous, it will produce only one type of progeny. If it is heterozygous, it will produce two types of progeny in the ratio 1:1.
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