The fracture surface inheritance phenomena were investigated combining metallography with the macro and micro fracture surface under the condition of the over-heating at 1300℃ and cooling at the differ- ent manner as wall as quenching then at the normal temperature,which elimiated over-heated structures.

Cytogenetic diagnosis on single lymphocyte of DMD patient with exon 50 deletion by two-time duplex PCR;

AIM:To detect whether the breakpoint regions of a complex chromosomal rearrangement(CCR)host cryptic submicroscopic copy number variations(CNVs),ascertain the complexity of the rearrangement,and investigate possibility and superiority of array-basedcomparative genomic hybridization(array-CGH)in molecular cytogenetic diagnosis.