Also though, an important piece of the genetic puzzle is the Human Leucocyte Antigen system, shortened to HLA, which is this location of genes on chromosome 6 that regulate our immune functions.

不过，遗传之谜的另一方面是人类白细胞抗原系统，简称HLA，定位于6号染色体；HLA调节我们的免疫功能。