Heterochromatin

Heterochromatin is defined as a genomic region that is composed mainly of repetitive DNA sequences, is poor in genes, is mostly inaccessible to DNA-modifying ...

Heterochromatin. This is DNA that is tightly coiled. This densely packed DNA prevents access by transcriptional machinery leading to genes that are not ...

n. 【生物】異染色質. Dr.eye 譯典通 ...

由 A Penagos-Puig 著作 · 2020 · 被引用 75 次 — Heterochromatin is a constituent of eukaryotic genomes with functions spanning from gene expression silencing to constraining DNA ...

由 Y Zhang 著作 · 2021 · 被引用 21 次 — Abundance of heterochromatin is associated with the frequency of spontaneous epialleles. DNA methylation feedback regulation between chromosomes ...

由 JH Lee 著作 · 2020 · 被引用 106 次 — Heterochromatin loss also occurs during senescence, a mechanism through which aging cells suppress their own ability to grow and divide in ...

由 SIS Grewal 著作 · 被引用 45 次 — Heterochromatin plays a fundamental role in gene regulation, genome integrity, and silencing of repetitive DNA elements.

異染色質（英語：Heterochromatin）是DNA內一種轉錄作用在。 異染色質在人類細胞的細胞核的位置。 結構. 編輯. 目前已知染色質有兩種類型，分別是真染色質與異染色質。

異染色體(Heterochromatin)其中最著名一種就是哺乳動物體中不活化的X染色體(X chromosome)。 男性(XY)和女性(XX)包含不同數目的X性聯基因(X-linked genes)，大部分基因 ...

真染色質在真核生物與原核生物的細胞中皆存在。與其相對而言，另一類通常無法轉譯成為蛋白質的染色質，則稱為異染色質（heterochromatin）。在細胞中， ...