How would you test a Pea plant whether it is a pure or hybrid for tallness?

Cross it with another tall Pea plant of unknown genotype

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Cross it with a pure tall Pea plant

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Cross with a homozygous dwarf Pea

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Cross it with any Pea plant

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Solution

The correct option is A Cross with a homozygous dwarf Pea

The test used to conduct whether the plant homozygous or heterozygous is
Self-pollination. After the test, all progeny are of the same type phenotypically, the plant is homozygous, or all progeny belongs to different types phenotypically, the plant is heterozygous.
So, the correct option is 'Cross with homozygous dwarf pea'

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