A.人工授粉时,应在豌豆开花后,将纯种高茎豌豆花的雄蕊全部摘除 |
B.在F2豌豆中,高茎豌豆基因组成为Dd 的植株占比约为1 /2 |
C.若子一代自交后的F2中矮茎豌豆为100 株,则理论上F2中高茎豌豆植株数量应是300 株 |
D.给黄色豆荚授以绿色豆荚(显性) 的花粉,所结豌豆的颜色是黄色 |
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