杂交组合 | 子代叶片边缘 |
①×② | 光滑形 |
①×③ | 锯齿状 |
①×④ | 锯齿状 |
①×⑤ | 光滑形 |
②×⑥ | 锯齿状 |
A.导致①锯齿的突变基因与导致⑥锯齿的突变基因为等位基因 |
B.③和④的后代与①和②的后代杂交,子代全为叶片边缘光滑形 |
C.①和②的后代与①和⑤的后代杂交,子代叶片边缘锯齿的概率为1/2或1/4或7/16 |
D.若②和⑤杂交,子代叶片边缘为光滑形,说明突变体⑤的突变基因与其他突变体突变基因不在同源染色体上 |

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

