A.抗虫对不抗虫表现为完全显性,抗除草剂对不抗除草剂表现为不完全显性 |
B.根瘤农杆菌Ti质粒携带的抗虫和抗除草剂基因分别插入到了S2的2条非同源染色体上,并正常表达 |
C.若给S1后代T1植株喷施适量的除草剂,让存活植株自交,得到的自交一代群体中不抗虫抗除草剂的基因型频率为1/2 |
D.若取S3后代T1纯合抗虫不抗除草剂与纯合不抗虫抗除草剂单株杂交,得到的子二代中抗虫抗除草剂的纯合子占1/9 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2