A:该遗传病为隐性性状
B:致病基因位于X染色体上
C:II3和II4的基因型相同
D:II3和II4的基因型不同
rule shop visit music still
下图所示仪器可用于实验室制备少量无水FeCl3,仪器连接顺序正确的是( )
—Why are you looking for Mary in a hurry, John?
—The boss is wondering where she _____ and how long she ______ there.