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Principles Of Inheritance And Variation

Question
CBSEENBI12000199

How will you find out whether a given plant is homozygous dominant or heterozygous dominant ? Explain

Solution
By test cross, i.e. crossing the given plant with recessive parent.
When the dominant plant is crossed with a recessive parent  the progeny can be analysed to determine the genotype of the dominant individual.
If the progeny formed are 50% tall and 50 % dwarf then the genotype of the individual is heterozygous.
If all the progeny are tall then the individual has homozygous genotype.