In pea plants, purple flowers are dominant over white flowers, which are recessive. cross two homozygous dominant (pp) parents.

A punnet square is a diagram which illustrates the results of a cross. The results from a cross between two homozygous dominant (PP) parents can be illustrated as follows:

        P             P

P     PP          PP

P     PP          PP

A dominant trait can be described as the one which suppresses the effect of a recessive trait.

The outcomes of this cross show that all of the offsprings produced will be homozygous dominant having purple colour.

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explanation:

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hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds