下列叙述
A.深色囊鼠与浅色囊鼠在不同区域的分布现状受自然选择影响 |
B.与浅色岩P区相比,深色熔岩床区囊鼠的杂合体频率低 |
C.浅色岩Q区的深色囊鼠的基因型为DD、Dd |
D.与浅色岩Q区相比,浅色岩P区囊鼠的隐性纯合体频率高 |
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