Heterochromatin

Word HETEROCHROMATIN
Character 15
Hyphenation N/A
Pronunciations N/A

Definitions and meanings of "Heterochromatin"

What do we mean by heterochromatin?

Tightly coiled chromosomal material that stains deeply during interphase and is believed to be genetically inactive. noun

Heterochromatic tightly coiled chromosome material; believed to be genetically inactive noun

Heterochromatic tightly coiled chromosome material; believed to be genetically inactive

Synonyms and Antonyms for Heterochromatin

  • Synonyms for heterochromatin
  • Heterochromatin synonyms not found!!!
  • Antonyms for heterochromatin
  • Heterochromatin antonyms not found!

The word "heterochromatin" in example sentences

"In recent years it has become apparent that heterochromatin is critical for many essential functions." ❋ Unknown (2007)

"These modifications cause parts of chromosomes to condense into so-called heterochromatin, burying the regulatory regions of p53 target genes deep within," says graduate student and co-first author Fanny E. Estermann. ❋ Unknown (2010)

In general, C-bands and G-bands are complexed with proteins and RNAs to give a more compact organization called heterochromatin, whereas R-bands have a more open conformation referred to as euchromatin. ❋ Unknown (2009)

In contrast, a major part of the, non-active 'more compacted DNA regions, termed heterochromatin, are located in the nuclear periphery. ❋ Unknown (2009)

The study concentrates on understanding material called heterochromatin that assembles on centromeric sequences.

In other words, the so-called "heterochromatin" with which the cytologist deals in studying mitotic chromosomes is a quite different thing from, although in the neighborhood of, the heterochromatin proper having the above described complex of properties. ❋ Unknown (1964)

~ Exploring the Dark Matter of the Genome -- "Not so long ago, the difficult-to-sequence, highly repetitive, gene-poor DNA found in regions of chromosomes known as heterochromatin was called "junk." ❋ William Harryman (2007)

In non-dividing cells, DNA is associated with proteins to form the so-called chromatin, with more condensed "heterochromatin" at the periphery and less condensed "euchromatin" in the interior.

Certain regions are kind of stuffed away into something called heterochromatin, " ❋ Unknown (2009)

"Most researchers thought heterochromatin had little or no function, because it appeared to lack the protein-coding genes that occur so richly in the chromosomes 'more accessible and better-studied euchromatin," says Karpen, a senior scientist in Berkeley Lab's Life Sciences Division and an adjunct professor of cell and molecular biology at the University of California at Berkeley. ❋ Unknown (2007)

In non-dividing cells, DNA is associated with proteins to form the so-called chromatin, with more condensed “heterochromatin” at the periphery and less condensed “euchromatin” in the interior. ❋ Unknown (2009)

The central portion of their nuclei is occupied by a large mass of heterochromatin, while transcription factors that control the activity of genes are enriched at the nuclear periphery. ❋ Unknown (2009)

Methylation of histone H3 on lysine 9 and accumulation of chromodomain proteins, hallmarks of heterochromatin, also occur specifically on sequences undergoing elimination and are dependent on the small RNAs. ❋ Unknown (2006)

These findings contribute to a new paradigm of chromatin biology: regulation of heterochromatin formation by RNAi-related mechanisms in eukaryotes. ❋ Unknown (2006)

Like dark matter in the universe, the true nature of heterochromatin was unknown. ❋ William Harryman (2007)

In particular, the fact that repeat elements serve either as initiators or boundaries for heterochromatin domains and provide a significant fraction of scaffolding/matrix attachment regions S/MARs suggests that the repetitive component of the genome plays a major architectonic role in higher order physical structuring. ❋ Denyse O (2005)

In the third species, blocks of heterochromatin are distributed all along the chromosomes. ❋ Unknown (1983)

The elimination process is associated with formation of rings of DNA cut out from the heterochromatin (35). ❋ Unknown (1983)

Cross Reference for Heterochromatin

What does heterochromatin mean?

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