(n.) Tissue which is capable of being stained by dyes.
Example Sentences:
(1) Here we report that sperm from psr males fertilizes eggs, but that the paternal chromosomes are subsequently condensed into a chromatin mass before the first mitotic division of the egg and do not participate in further divisions.
(2) These studies led to the following conclusions: (a) all the prominent NHP which remain bound to DNA are also present in somewhat similar proportions in the saline-EDTA, Tris, and 0.35 M NaCl washes of nuclei; (b) a protein comigrating with actin is prominent in the first saline-EDTA wash of nuclei, but present as only a minor band in the subsequent washes and on washed chromatin; (c) the presence of nuclear matrix proteins in all the nuclear washes and cytosol indicates that these proteins are distributed throughout the cell; (d) a histone-binding protein (J2) analogous to the HMG1 protein of K. V. Shooter, G.H.
(3) The use of ethidium for chromatin cytochemistry allows to study chromatin properties in wide ranges of pH.
(4) The isoenzyme mobility diminished in both tumour chromatin extracts, and the slow migrating gamma isoenzyme exhibited sensitivity to L-cysteine inhibition.
(5) Its presence suggested an implication in the enhanced activities of RNA polymerases of E 24 chromatin.
(6) In the absence of n-butyrate, only a small percentage (approximately 4%) of the total beta A chromatin is in a soluble chromatin fraction following micrococcal nuclease digestion and centrifugation.
(7) Likewise, [3H]estradiol-receptor complexes from rabbit uterus, Squalus oviduct, or mouse testis bound minimally to Squalus testicular chromatin.
(8) Indirect end-labeling analysis of micrococcal nuclease digested chromatin reveals that nucleosomes are identically phased on the mouse mammary tumor virus long terminal repeat in normal and hyperacetylated chromatin.
(9) Since chromatin particles containing DNA the size of 125 kbp can electroelute, we conclude that the polymerizing complex is attached to a nucleoskeleton which is too large to escape.
(10) In addition our studies reveal that the binding patterns of [3H]GR isolated from mammary glands of nulliparous and lactating mice to their homologous chromatin is essentially similar.
(11) Quantitative cytophotometry and ocular filar micrometry were used to monitor T-2 toxin induced alterations in chromatin and neuronal nuclear volume in supraoptic-magnocellular neurons of rat hypo-thalami.
(12) We therefore sought to determine whether doxorubicin in the presence of NADH dehydrogenase and the transition metal ions Fe(III) or Cu(II) induces DNA base modifications in isolated human chromatin.
(13) In contrast, interchange of the histones and tightly bound non-histone protein DNA complexes from hormone-withdrawn and estrogen-stimulated chromatins during reconstitution did not affect the level of mRNAOV sequences produced.
(14) Mechanisms of investigated phenomenon, particularly their dependence on the chromatin structure, as well as the influence of ionic strength on binding the repair enzymes with DNA are discussed.
(15) The blood lymphocytes were small with scanty cytoplasm, densely condensed nuclear chromatin, and deep clefts originating in sharp angles from the nuclear surface.
(16) Poly (ADP-ribose) polymerase, a nuclear protein-modifying enzyme, binds to the internucleosomal linker region of chromatin, although it modifies certain core nucleosomal histones in addition to histone H1.
(17) Micrococcal nuclease-digested testis and erythrocyte chromatin was separated into soluble and insoluble fractions.
(18) Topoisomer heterogeneity for plasmid chromatin in vivo may be due to heterogeneity in the number of nucleosomes on each plasmid, which could reflect either the nature of the assembly process or the dynamics of nucleosomes within the cell.
(19) Such a heterogeneity in DNA content in the diploid part of HPR cell population could apparently suggest some differences in the nuclear chromatin arrangement to be always higher in spring before the frog spawning, and it seems to be characteristic of this type of cells.
(20) These observations demonstrate that brain cells synthesize a NGF mRNA in primary culture and that the butyrate moiety of db-cAMP enhances NGF gene expression in these cells, probably by a modification of chromatin structure in and around the NGF gene.
Chromosome
Definition:
(n.) One of the minute bodies into which the chromatin of the nucleus is resolved during mitotic cell division; the idant of Weismann.
Example Sentences:
(1) In contrast, DNA polymerase alpha, the enzyme involved in chromosomal DNA replication, was relatively insensitive to CA1.
(2) Here we report that sperm from psr males fertilizes eggs, but that the paternal chromosomes are subsequently condensed into a chromatin mass before the first mitotic division of the egg and do not participate in further divisions.
(3) Clonal abnormalities involving chromosomes 3 and 21 were noted in two patients.
(4) Five probes of high specificity to individual chromosomes (chromosomes 3, 11, 17, 18 and X) were hybridized in situ to metaphase chromosomes of different individuals.
(5) The constitution of chromosomes in the two plasmacytomas remained remarkably stable in their homogeneous modal population.
(6) The data on mapping the episomal plasmid integration sites in yeast chromosomes I, III, IV, V, VII, XV are presented.
(7) The purpose of these studies was to better understand the molecular basis of chromosome aberration formation after mitomycin C treatment.
(8) Twelve families with Wiskott-Aldrich syndrome (WAS) were studied by linkage analysis using 10 polymorphic marker loci from the X-chromosome pericentromeric region.
(9) The effects of phenoxyacetic acid herbicides were investigated on the induction of chromosome aberrations in human peripheral lymphocyte cultures in vitro and in lymphocytes of exposed workers in vivo.
(10) Pituitary weight, mitotic index and chromosomes were studied in male rats following a single or repeated dose of estradiol-benzoate for a total period of 210 days.
(11) Alleles in this region can be exchanged between X and Y chromosomes and are therefore inherited as if autosomal.
(12) The haplotype of the recombinant X chromosome of each of 241 backcross progeny has been established using the X-linked anchor loci Otc, Hprt, Dmd, Pgk-1, and Amg and the additional probes DXSmh43 and Cbx-rs1.
(13) In the triploids, the 40 female chromosomes present (mouse, n = 20) were derived from a single diploid pronucleus formed after the extrusion of a first polar body, and following the monospermic fertilization of primary oocytes.
(14) The induction of cells with two Y chromosomes by nitrogen mustard (NM) was examined.
(15) Several investigators have attempted to correlate chromosomal abnormalities with Cornelia de Lange Syndrome (CLS), but none of them have been conclusive.
(16) The technique resolved chromosomes in the size range of 100 kb-1 Mb.
(17) A number of recurring chromosomal abnormalities have been identified in childhood acute lymphoblastic leukemia.
(18) Since the plasmid-cured strains did not contain DNA sequences homologous to plasmid DNA, the gene for the free-inclusion protein must be encoded in the chromosome.
(19) The gene, which is located at chromosome XIII, is transcribed as a mRNA of about 2.7 kilobases, and the amount of message has been found to increase 3- to 4-fold during the culture.
(20) The numerical chromosome values in 53 human tumors were determined and compared with the modal DNA values as measured by flow cytometry.