Within the DNA of the cells in these polyps, there are specific stretches of nucleotides that are called CpG islands.

息肉细胞的DNA中有一些特定的核苷酸序列被称为CpG岛。

CpG islands are found in most promoter regions of genes which are the DNA sequences responsible for the initiation of gene transcription.

CpG岛位于绝大部分启动子区域，是一组负责转录起始的DNA序列。

It functions primarily in the transmission of neural signals between the brain and the rest of the body but also contains neural circuits that can independently control numerous reflexes and central pattern generators (CPG).

它的功能主要是在大脑和身体其他部分之间传递神经信号，但也包含可以独立控制许多反射和中枢模式发生器(CPG)的神经回路。