(Arrows point to edge of strands). 0 By gently lysing the cells,the highly compacted nucleoid will emerge intact.采用极轻微小心的细胞 裂解方法，就可以得到一团完整展开的类核DNA。By gently lysing the cells, the highly compacted nucleoid will emerge intact. 采用极轻微小心的细胞 裂解方法，就可以得到一团完整展开的类核DNA。 (Arrows point to edge of strands)