Question

When a cross is made between tall garden pea plant with yellow seeds (ttyy) and tall garden pea plant with green seeds (ttyy), what proportion of phenotype in the offspring could be expected to be tall and green?

Answer 1

The question you have asked is wrong because the tall plant will have dominant character first  which is (TTYY)

for this the phenotype of the offspring will be  9:3:3:1