Astudent conducted an experiment by crossing a pea plant homozygous for purple flowers with a pea plant homozygous for white flowers. he randomly collected 100 healthy seeds from the cross, planted them and provided equal amounts of water and sunlight to each plant in the following season the student observed that all the plants bore purple color flowers
which hypothesis was most likely tested by this experiment?

Mendel's law of dominance

Explanation:

A pea plant homozygous for purple flowers could have the genotype PP. A pea plant homozygous for white flowers could then have the genotype pp.

This means that all the offpsring have the genotype Pp, see the attached punnet square.

Because the P allele is dominant to the p allele, the plants have purple flowers. This is in agreement with Mendel's law of dominance. This states that for a dominant trait (following a cross of two different homozygous genotypes), hybrid offspring of the next generation will always express the dominant allele.

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