o 1 loai TV cho lai giua than cao do tron voi than thap vang nhan duoc F1 100% than cao do tron. Cho F1xF1. Xac dinh:
a/ So loai giao tu va ti le moi loai
b/ So to hop giao tu F2
c/ so loai kieu gen, kieu hinh va ti le kieu gen, kieu hinh F2
d/ ti le ca the cao do tron F2

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