Cytoplasmic inheritance (extrachromosomal inheritance) The determination of certain characters by genetic material contained in plasmids or organelles other than the nucleus, e.g. mitochondria and chloroplasts.

• 胞质遗传：由质体或非细胞核的细胞器，例如线粒体或叶绿体所携带的遗传物质决定遗传性状的遗传现象叫做胞质遗传。