Answer:
T- tall allele
t- short allele
Step-by-step explanation:
From the given genotype Tt, the known height of the plant is tall. This means that a tall plant will be dominate over a short one.
As we know, capital letters refer to a dominant trait, whereas lowercase refers to a recessive trait; Therefore, the T would indicate the dominant trait (tall), and t would indicate the recessive trait (short)