They also scanned the DNA to search for copy number ariations, which are submicroscopic insertions and deletions of genetic material that scientists beliee may be linked to autism and other diseases.

• 他们扫描DNA寻找DNA拷贝数量的变化，即遗传物质亚显微的插入和删除，科学家认为这一现象可能与孤独症和其他疾病相关。