If tall plant is a dominant trait, and short plant is a recessive trait, which of the following situations can produce short plant offspring?

Question

anonymous · Answer

Short is recessive. Only something that is homozygous recessive will make a short plant.
(Two lowercase letters)

anonymous · Answer

Both parents are homozygous tall plants.

One parent is homozygous tall plant, and the other is heterozygous tall plant.

Will one of these answers work?

anonymous · Answer

If the parents only have the genes for tall plants, all the genes they give off will make a tall baby!
... though, the second option sounds wrong too... both parents need to be either homozygous short, or heterozyous.

anonymous · Answer

1. If both parents are homozygous for Tall (TT and TT) then only Tall plant (TT) will be produced and which are also homozygous. 

2.One parent is homozygous(TT) and other is heterozygous(Tt). Now there are two possible combinations and their probability.
T*T =(TT)  Homozygous tall
T*t =(Tt)   Heterozygous tall 
so all plants will be phenotypically tall            no short plant

anonymous · Answer

in the f2 gen. we would get a short plant in the ratio 3:1