Step-by-step explanation:
We know that for the plant;
Tall is represented by T
Short is represented t
Phenotypically, TT and Tt have the same expression.
The phenotype of an organism denotes the observable feature it possesses. Although determined by the genetic composition but the environment plays a very important role in its expression.
The genotype is the genetic make up of an organism. TT and Tt denotes the genes that occupy positions in the nucleus of the cell.
Both TT and Tt shows that the organism is tall. t is short and recessive.