Question:
Genotype of dominant trait of plant can be determined by crossing $F_{1}$ hybrid with the parent and the genotypic ratio is
Genotype of dominant trait of plant can be determined by crossing $F_{1}$ hybrid with the parent and the genotypic ratio is
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Test cross with recessive parent reveals heterozygosity by 1:1 offspring ratio.
Updated On: Mar 19, 2026
- Homozygous dominant trait, 2 : 1
- Homozygous dominant trait, 1 : 1
- Homozygous recessive trait, 1 : 1
- Homozygous recessive trait, all are same
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The Correct Option is C
Solution and Explanation
To test if a dominant trait is heterozygous, an $F_{1}$ hybrid is crossed with a homozygous recessive (test cross). The resulting 1:1 phenotypic ratio confirms heterozygosity of the dominant parent.
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