chromatin fiber meaning in Chinese

染色丝质
染色质丝
染色质纤维

The head of spermatozoa contains a nucleus but no acrosome . the nuclear fossa developes well . during the process of spermtogenesis , within the nucleus the chromatin condenses step by step into wads , among which are loose chromatin fibers
成熟精子头部无顶体，主要为核占据，精子形成过程中，细胞核中的染色质浓缩成致密的团块状，团块状的染色质之间分布着松散的纤维状染色质。