12. Yet most ancestry testing only considers a single lineage, either the Y chromosome inherited through men in a father's line or mitochondrial DNA, which is passed down only from mothers.
12. 然而,大多数血统测试只考虑单一血统,要么是通过父系男性遗传 Y 染色体,要么是仅从母亲遗传下来线粒体 DNA。
" M'Lord Baron." The man who stood outside the doorfield of the Baron's bedchamber was low built, gross of face and body, with the Harkonnen paternal line's narrow-set eyes and bulge of shoulders.