Answer:
1:1.
Step-by-step explanation:
Mendel is known as the father of the genetics. Mendels explained the concept of dominance - the trait that can express itself in heterozygous condition is known as dominant trait. The other trait that can not express itself is known as recessive trait.
The tall plants (T) is dominant and (t) is recessive. The cross between homozygous short plant (tt ) is crossed with heterozygous dominant (Tt).
Parents tt × Tt.
offsprings: Tt ( tall) and tt ( short).
The expected genotypic ratio is 1 (tt) :1 (Tt).
Thus, the answer is 1:1.