| / English Dictionary |
CELL NUCLEUS
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A part of the cell containing DNA and RNA and responsible for growth and reproduction
Synonyms:
Classified under:
Hypernyms ("cell nucleus" is a kind of...):
cell organ; cell organelle; organelle (a specialized part of a cell; analogous to an organ)
Meronyms (parts of "cell nucleus"):
nucleole; nucleolus (a small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis)
chromatin; chromatin granule (the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins; during mitotic division it condenses into chromosomes)
achromatin (the part of a cell nucleus that is relatively uncolored by stains or dyes)
linin (an obsolete term for the network of viscous material in the cell nucleus on which the chromatin granules were thought to be suspended)
chromosome (a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order)
Meronyms (substance of "cell nucleus"):
karyoplasm; nucleoplasm (the protoplasm that constitutes the nucleus of a cell)
Hyponyms (each of the following is a kind of "cell nucleus"):
pronucleus (the nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote)
subthalamic nucleus (an oval mass of grey matter located in the caudal part of the subthalamus; associated with the striate body)
Holonyms ("cell nucleus" is a part of...):
cell ((biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals)
Context examples:
In this dye system, iron acts as a mordant to hematoxylin rendering it insoluble, thereby allowing irreversible blue-black colored dyeing to the cell nucleus.
(Iron Hematoxylin Staining Method, NCI Thesaurus)
The more readily stainable portion of the cell nucleus, forming a network of nuclear fibrils within the achromatin of a cell.
(Chromatin Structure, NCI Thesaurus)
Nuclear Translocation is a subcellular process in which activated cytoplasmic proteins are transported into the cell nucleus as part of a signal transduction pathway to modify cell function (typically gene expression) in response to a signaling event or condition.
(Nuclear Translocation, NCI Thesaurus)
Mitosis Inhibition involves interference with, or restraint of, the activities involved in division of the eukaryotic cell nucleus to produce two daughter nuclei that contain the same chromosome and DNA content as that of the parent cell.
(Negative Regulation of Mitosis, NCI Thesaurus)
The SMAD4 tumor suppressor protein specifically recognizes an eight base pair palindromic DNA sequence and is critical for transmitting TGFB, and related cytokine signals, to the cell nucleus to mediate transcriptional activation of target genes.
(Mothers Against Decapentaplegic Homolog 4, NCI Thesaurus)
The chromosome characteristics of an individual or a cell line are usually presented as a systematized array of metaphase chromosomes from a photomicrograph of a single cell nucleus arranged in pairs in descending order of size and according to the position of the centromere.
(Karyotyping, NLM, Medical Subject Headings)
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