Me if a heterozygous dominant tall pea plant is crossed with a short pea plant, what is the expected phenotypic ratio of tall: short plants? 1: 1 1: 2 3: 1 all tall all short

Dominant trait = T (tall)
recessive trait = t (short)

heterozygous, meaning different, tall pea plant = Tt
short, short being recessive, pea plant = tt

phenotype means physical looks, which is either tall or short

T t

t | Tt tt
t | Tt tt

two Tt & two tt meaning there are 2 tall and two short. therefore,
1:1

Idon't know i don't know