(a.) Consisting of, or having, many cells or more than one cell.
Example Sentences:
(1) Calcium channels, which play a primary role in the control of the calcium influx into cardiac cells, were initially studied by recording macroscopic currents in multicellular preparations.
(2) We have used this dye to enable us to track individual cells, as they move through multicellular tissues in later Dd stages.
(3) Statistical analysis of 251 phylogenetically informative nucleotide positions rejects the "volvocine lineage" hypothesis, which postulates a monophyletic evolutionary progression from unicellular organisms (such as Chlamydomonas), through colonial organisms (e.g., Gonium, Pandorina, Eudorina, and Pleodorina) demonstrating increasing size, cell number, and tendency toward cellular differentiation, to multicellular organisms having fully differentiated somatic and reproductive cells (in the genus Volvox).
(4) Our results show the feasibility of back-extrapolating multicellular tumour spheroid growth curves to obtain survival estimates that can be applied to establish sublethal damage repair capacity.
(5) In multicellular preparations, phenylephrine caused a concentration-dependent positive inotropic effect, an increase in action potential duration, and a decrease in resting potential; the effects were antagonized by phentolamine.
(6) Cyclic-AMP-induced prespore protein synthesis and the proportion of prespore cells in multicellular aggregates are also not affected by bypassing or inhibiting the cAMP-induced pHi increase.
(7) They are thought to be a major source of DNA damage leading to aging and cancer in multicellular organisms.
(8) Analysis of ribosomal RNAs agrees with traditional analyses of morphological and developmental characters that all multicellular animals probably arose from a common ancestor, but highlights one of the major limitations of the various mathematical algorithms used.
(9) Multicellular aggregates were dissociated either immediately before or immediately after irradiation and assayed under conventional conditions.
(10) Rapid cooling contractures (RCCs) were used to assess changes in sarcoplasmic reticulum (SR) Ca content in both isolated rabbit ventricular myocytes and multicellular preparations.
(11) The involvement of microorganisms or "hyperparasites" during the host associations of multicellular parasites was described.
(12) The radiation response of multicellular spheroids, initiated from a human melanoma xenograft (E.E.)
(13) Antiproliferative effects of free retinoic acid (RA) and liposome-encapsulated RA (RAlp) were compared in a squamous carcinoma system using both monolayer cells and multicellular tumor spheroids (MTS), an in-vivo-like model with three-dimensional histological structure.
(14) The histone H3 and H4 genes are shown to be expressed in both Arabidopsis plantlets and transitory multicellular suspension.
(15) In cells transformed with this vector, the gene fusion showed the same temporal regulation as the endogenous gene during multicellular development and, like endogenous prestalk genes, was highly inducible by cyclic AMP in in vitro cell cultures.
(16) The mechanisms a macrophages uses to block the replication of a virus may be totally ineffective in the destruction of a multicellular helminth, such as Schistosoma mansoni.
(17) A significant negative correlation existed between parathyroid aluminium and osteoblastic surfaces (P less than 0.05), but no correlation was found with bone formation rate at tissue and bone multicellular units levels.
(18) We have compared the response to a number of cytotoxic drugs of cells treated either within intact multicellular spheroids or as isolated cells following spheroid disaggregation.
(19) This is discussed in terms of the physiological adaptation and development of multicellular-tissue systems.
(20) Analysis of protein sequences shows that many proteins in multicellular organisms have evolved by a process of exon shuffling, deletion and duplication.
Unicellular
Definition:
(a.) Having, or consisting of, but a single cell; as, a unicellular organism.
Example Sentences:
(1) Dunaliella bardawil, a unicellular green alga that can be induced to accumulate massive amounts of beta-carotene, is particularly suitable for studies of carotenogenesis regulation and its links to developmental and adaptive processes in the chloroplast.
(2) Statistical analysis of 251 phylogenetically informative nucleotide positions rejects the "volvocine lineage" hypothesis, which postulates a monophyletic evolutionary progression from unicellular organisms (such as Chlamydomonas), through colonial organisms (e.g., Gonium, Pandorina, Eudorina, and Pleodorina) demonstrating increasing size, cell number, and tendency toward cellular differentiation, to multicellular organisms having fully differentiated somatic and reproductive cells (in the genus Volvox).
(3) Free amino acid pools were examined for cultures of vegetative cells, gametes, and mature zygotes of the unicellular green alga Chlamydomonas reinhardtii (Dangeard).
(4) Cyanelles are photosynthetic organelles which are considered as intermediates between cyanobacteria and chloroplasts, and which have been found in unicellular eukaryotes such as Cyanophora paradoxa.
(5) Six unicellular strains from these habitats and Synechococcus strain PCC 7942, a strain maintained for more than 10 years under laboratory conditions, were assessed for ingestion and digestion by larvae Culex pipiens and Anopheles gambiae mosquitoes.
(6) Gene rearrangements altering gene expression have mainly been found in some unicellular organisms.
(7) The flagellates and the ciliates have long been considered to be closely related because of their unicellular nature and the similarity in the structures of the axoneme of the flagella and cilia in both groups.
(8) The monoclonal antibodies did not recognize type I or type II cAMP-dependent protein kinase from rabbit muscle nor did they cross-react with proteins from several unicellular eucaryotes, with one exception: antibodies specific for the catalytic subunit recognized a 40-kDa protein of Tetrahymena pyriformis.
(9) Cleavage occurred at random after 23s rRNA formation and was stimulated by light in this organism, an obligately photoautotrophic unicellular blue-green alga.
(10) The data on the quantity and quality of protein from the unicellular algae are indicative of its high biological value and applicability to BLSS.
(11) Primary interaction of TSH with the unicellular Tetrahymena accounted for an increase in TSH binding capacity on reexposure, i.e.
(12) Nineteen plaque-forming viruses of the unicellular, eukaryotic Chlorella-like green alga, strain NC64A, were isolated from various geographic regions in the United States and characterized.
(13) Chlamydomonas reinhardtii is a unicellular eukaryote whose light-tracking system consists of a single eye.
(14) independence of ambient temperature, was found for ultradian rhythmicity even at the level of the unicellular organization.
(15) Unicellular planktonic algae show considerable developmental plasticity in relation to mean cell size and the fraction of the cell volume occupied by various organelles.
(16) Substituting size-fractionated silica particles for diatoms (the fossilized cell walls of unicellular algae) allowed for the purification of microgram amounts of genomic DNA, plasmid DNA, and rRNA from cell-rich sources, as exemplified for pathogenic gram-negative bacteria.
(17) When the sequence is compared with that from the plastocyanin of the unicellular green alga Chlorella fusca, the French-bean protein shows the deletion of the N-terminal residue, a two residue insertion and 53 identical residues.
(18) The unicellular conjunctival mucous glands secrete both neutral and acidic glycoconjugates as shown by positive reactions with PAS, PAPD, PAPS, and AB methods.
(19) Each equation is modified as necessary to conform to the three current models for sodium, chloride, and bicarbonate secretion: (1) "exchange-diffusion," (2) "two-component," and (3) "unicellular" models.
(20) Cells of unicellular cyanobacteria of typological group Ia, containing approximately 50 mol% guanine + cytosine (G+C) in their DNA (R. Y. Stanier, R. Kunisawa, M. Mandel, and G. Cohen-Bazire, Bacteriol.