Answer:
given, two alleles,
G for green pod allele and g for yellow pod allele
let, two homozygous plants crossed over, then,
GG × gg ; then it will give in F1 generation,
    g    g
 G  Gg   Gg
 G  Gg   Gg
so, in F1 generation, it will give heterozygous Gg.
in F2 generation, 2 Gg will give, Gg × Gg
    G    g
G Â GG Â Â Gg
g   Gg   gg
as usual, the result gives us,
genotypic ratio = 1:2:1 Â (GG {green}, Gg {green}, gg {yellow})
phenotypic ratio = 3:1 Â (3 green plant and 1 yellow plant).