Answer:
Mendel crossed pea plants by selecting a homozygous tall And homozygous short plants as parents.
Step-by-step explanation:
In Mendel’s cross the selected parents are a tall pea plant and a short pea plant. Both the parents are homozygous. The recessive trait is short. Letter T represents tall and t represents short. Hence the phenotype TT is homozygous dominant and tt is homozygous recessive.
The phenotype Tt represents tall since T is dominant over t. Mendel’s cross can be represented as
F1 generation Tt Tt Tt Tt
F2 generation TT Tt Tt tt
In the F1 generation all the plants are tall and in the F2 generation 3/4 plants are tall and1/4 plants are short.