Pea plant with genotype BB and bb were cross pollinated. In${\mathbf{F}}_2$  generation, 200 plants are obtained. Choose correct w.r.t phenotypes in ${\mathbf{F}}_2$ generation.

100 are intermediate size starch grain.

B or b alleles  control starch grain syntheiss.BB- large sized grain and bb for small size. 

But w.r.t seed size, B and b show incomplete dominance ,so the genotype Bb shows Intermediate type of starch grains.