heterochromatin
n. [遗] 异染色质
例句
Facultative heterochromatin is the heterochromatin that may become transcriptionally active in specific cell development fates.
兼性异染色质是在特定细胞发育命运中可能具有转录活性的异染色质。
Chromosome material with exhibits of such behaviour is called heterochromatin.
表现这种现象的染色体物质叫做异染色质。
What other functions abundant heterochromatin may perform are still an open question.
至于大量的异染色质还有什么作用仍然是一个问题。