Explanation:
1. TT_Ho. Bb_He. DD_Ho. Ff_He. tt_Ho. dd_Ho
TT and DD are purebred
Bb and Ff are hybrids
2.YY_Ho yellow. Yy_He yellow. yy_Ho blue
SS_Ho square. Ss_He square. ss_Ho blue
3.Tall = TT or Tt. short = tt
Pink body = PP or Pp. yellow body = pp
4.
