A.PCR时需在Ers1基因左右两端分别添加XhoI、HpaI酶切序列 |
B.过程②可用氯化钙处理农杆菌,有助于促进重组Ti质粒转化到农杆菌细胞中 |
C.过程③后可在培养基中添加卡那霉素对转化的植物细胞进行筛选 |
D.可利用抗原—抗体杂交技术检测该植物染色体上是否插入目的基因 |
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