Question

Yeah heterozygous tall plant and drop plant crossed assuming complete dominance will be the ratio of offspring

Answer 1

when a heterozygous tall plant is crossed with dwarf plant

heterozygous tall plant =Tt

homozygous dwarf plant =tt

on crossing off springs are    Tt      Tt     tt     tt

hence ratio is

50% heterozygous tall : 50% homozygous dwarf

hence ratio is 1:1  

Answer 2

hey by ratio if u mean phenotypic and genotypic ratios
then here's ur answer ...
☆☆

........The offspring will be
.........TT : Tt : Tt :tt

......phenotype is
◆◆ 3 tall:I dwarf

........the phenotypic ratio
◆◆◆=3:1

☆☆☆
...........genotype is
1homozygous tall : 2 heterozygous tall :1 homozygous dwarf

............genotypic ratio
★★★★=1:2:1

hope 7th helped $$
Thank huh !