bai1: o 1 loai, dem lai giua bo me deu thuan chung khac nhau ve 2 cap tinh trang tuong phan, doi F1 dong loat xuat hien cay cao, chin som. Cho F1 lai voi cay than thap, chin muon thu duoc the he lai 4 kieu hinh nhu sau: 301 cay cao, chin som: 298 cay cao, chin muon: 303 cay thap, chin som: 299 cay thap, chin muon.( biet moi tinh trang do 1 cap gen quy dinh)
a/ neu muon F1 phan li 3:1 ve tinh trang kich thuoc. con tinh trang thoi gian chin dong tinh thi keu gen P co the nhu the nao?
b/ neu muon F1 dong tinh ve tinh trang kich thuoc, tinh trang thoi gian chin phan li 1:1 thi kieu gen P co the nhung the nao?
bai2: cho tu thu phan 10 cay ngo hat tim, qua co rau thu duoc 1920 cay ngo F1, trong do co 1380 cay hat tim, co rau; 204 cay hat tim, khong rau; 300 cay hat trang, co rau va 36 cay hat trang, khong rau. Biet moi gen quy dinh 1 tinh trang, cac gen PLDL, moi cay chi co 1 qua. Xac dinh kieu gen va so luong ca the thuoc moi loai kieu gen cua 10 cay ngo ban dau