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In Mendel's monohybrid cross, all first-generation plants appeared tall. What is the most correct conclusion?

Answer and explanation

Correct answer: The tall trait is dominant over the dwarf trait.

In Mendel’s monohybrid cross, a pure tall plant is crossed with a pure dwarf plant. The first-generation offspring receive one allele for each form of the trait, but only the tall phenotype is visible. This shows that the tall allele masks the dwarf allele and is dominant. The dwarf allele is not destroyed; it remains present in the hybrid genotype. Therefore option A is correct.

Related tags

MendelMonohybrid CrossDominanceMendel’s LawsMendel S LawsHeredity And EvolutionScienceClass 10 Mcq

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