A.甲病的致病基因位于常染色体上,乙病的致病基因位于X染色体上 |
B.甲病可能由正常基因发生碱基对的替换导致,替换后的序列可被Mst II识别 |
C.乙病可能由正常基因上的两个BamHI识别序列之间发生碱基对的缺失导致 |
D.II4不携带致病基因、II8带致病基因,两者均不患待测遗传病 |
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