Our genetic information is organized into a set of 46 volumes, and when we did that, we had to be able to account for each of those 46 volumes, because in some cases with autism, there's actually a single volume that's missing.
我们的基因信息存在于 46卷百科全书中（影射46条染色体）， 在我们分析数据时，需要对 这46卷进行逐一计数。 因为在某些自闭症案列中， 实际上是整条单一染色体消失了。