(1)若乙栏种牛是甲栏种牛的杂交后代,则甲栏种牛的基因组成是
(2)若用乙栏中黑色种牛与棕色种牛杂交,则它们子代的基因组成中含基因d的概率是
(3)某院士利用甲栏公牛的体细胞核注入乙栏棕色母牛的去核卵细胞中,经培育发育成早期胚胎,再植入到甲栏母牛的子宫中孕育,则所生小牛的性别为
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