Answer:
Homozygous (?)
Step-by-step explanation:
"Homozygous, as related to genetics, refers to having inherited the same versions (alleles) of a genomic marker from each biological parent. Thus, an individual who is homozygous for a genomic marker has two identical versions of that marker."
Take my two cents; if a plant has two of the same gene it will homozygous because both of the parents were tall the offspring will receive a 'tall alleles' from both parents and also be tall. (tall+tall= tall)