先天愚型染色体检查中,下列哪项核型最常见()
A:47,XX(XY),+21
B:46,XX(XY),-14,+t(14q;2lq)
C:45,XX(XY),-14,-2l,+t(14q;2lq)
D:46,XX(XY),-21,+t(2lq)
E:46,XX(XY),-22,+t(2lq;22q)
出自:02941《中医儿科学》