Question: In pea plants, the allele for smooth peas is dominant (S). If a heterozygous smooth pea plant (Ss) is crossed with a homozygous smooth pea plant (SS), which are the possible genotypes the offspring could have?

What is the correct answer to the question from the following choices?

[i] only SS.
[ii] only Ss.
[iii] Ss or SS.
[iv] ss or SS.
[iii]