EOG8JWXWD GO:0005634 12/21 nucleus cellular_component "A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent." [GOC:go_curators] EOG8JWXWD GO:0003682 2/21 chromatin binding molecular_function "Interacting selectively and non-covalently with chromatin, the network of fibers of DNA, protein, and sometimes RNA, that make up the chromosomes of the eukaryotic nucleus during interphase." [GOC:jl, ISBN:0198506732, PMID:20404130] EOG8JWXWD GO:0051276 2/21 chromosome organization biological_process "A process that is carried out at the cellular level that results in the assembly, arrangement of constituent parts, or disassembly of chromosomes, structures composed of a very long molecule of DNA and associated proteins that carries hereditary information. This term covers covalent modifications at the molecular level as well as spatial relationships among the major components of a chromosome." [GOC:ai, GOC:dph, GOC:jl, GOC:mah] EOG8JWXWD GO:0000785 2/21 chromatin cellular_component "The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome." [GOC:elh, PMID:20404130] EOG8JWXWD GO:0000122 1/21 negative regulation of transcription from RNA polymerase II promoter biological_process "Any process that stops, prevents, or reduces the frequency, rate or extent of transcription from an RNA polymerase II promoter." [GOC:go_curators, GOC:txnOH] EOG8JWXWD GO:0000792 1/21 heterochromatin cellular_component "A compact and highly condensed form of chromatin." [GOC:elh] EOG8JWXWD GO:0030381 1/21 chorion-containing eggshell pattern formation biological_process "The regionalization process that gives rise to the structural pattern of a chorion-containing eggshell such as those found in insects." [GOC:bf, GOC:mtg_sensu] EOG8JWXWD GO:0034587 1/21 piRNA metabolic process biological_process "The chemical reactions and pathways involving piRNAs, Piwi-associated RNAs, a class of 24- to 30-nucleotide RNA derived from repeat or complex DNA sequence elements and processed by a Dicer-independent mechanism." [GOC:kmv] EOG8JWXWD GO:0045944 1/21 positive regulation of transcription from RNA polymerase II promoter biological_process "Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter." [GOC:go_curators, GOC:txnOH]