<u>Answer:</u>
<em>If Mendel crossed a true breeding dominant plant with a true breeding recessive plant the recessive trait is visible in the F3 generation. </em>
<u>Explanation:</u>
In <em>Mendel’s cross the selected parents are a tall pea plant and a short pea plant.</em> Tall is the dominant trait and short is the recessive trait. Both the parents are homozygous.
Letter T represents tall and t represents short. Hence the phenotype TT is homozygous dominant and tt is homozygous recessive.
<em>The genotype Tt represents tall since T is dominant over t. Mendel’s cross can be represented as </em>
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<em>F1 generation Tt Tt Tt Tt </em>
<em>F2 generation TT Tt Tt tt </em>