单词	heterochromatin
释义	heterochromatin /ˌhɛtərəʊˈkrəʊmətɪn / noun [mass noun] Biology Chromosome material of different density from normal (usually greater), in which the activity of the genes is modified or suppressed. Compare with euchromatin.The organization of DNA into euchromatin and heterochromatin is implicated in gene silencing.... Numerous genes act to remodel and repress chromatin in heterochromatin and around euchromatic genes during development. Thus, the density of genes in heterochromatin is about 1% of that in euchromatin.
随便看	dehydroepiandrosterone dehydrogenase dehydrogenate dehydrogenation Deianira de-ice de-icer deicidal deicide deictic ted tedder teddy teddy bear Teddy boy Te Deum tedious tediously tediousness tedium tee tee-ball tee-hee teem teen

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