How To Use Cell division In A Sentence
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Primarily they reproduce asexually, which they accomplish by binary fission, or simple cell division.
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The genes for cell division did not evolve to separate different kinds of fish.
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Embryos grow by cell division .
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Chromosomes are visible only during cell division, when the DNA is supercoiled and condensed to facilitate distribution into daughter cells.
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The development of a leaf involves a complex pattern of cell division and cell elongation, with cell elongation playing a central part in the expansion of the leaf blade.
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Cell division occurs mainly at the intercalary meristem at the base of the internode, but also throughout the internode at early stages of internode development.
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They are the first to divide in cell division and form the poles at each end of the cell.
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Cell divisions during development occur in a fixed sequence.
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The value of graphic material is to attract attention and convey information in a summarised form, e.g. cell division.
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The pollen cells are formed from mother cells by a process of cell division and subsequent setting free of the daughter cells or pollen cells by rejuvenescence, which is distinctly comparable with that of the formation of the microspores of Lycopodiaceæ, etc. The subsequent behavior of the pollen cell, its division and its fertilization of the germinal vesicle or oosphere, leave no doubt as to its analogy with the microspore of vascular cryptogams.
Scientific American Supplement, No. 531, March 6, 1886
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Embryos grow by cell division .
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Special emphasis is given to the initial stages of microspore embryogenic potential acquirement and the initiation of cell divisions.
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Cell divisions cleave the egg, like cutting a cake, and result in a multicellular structure.
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The sterile females also had rough eyes and clipped wings, two phenotypes associated with cell division defects.
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It is these cells which will later give rise, by further cell division, to eggs or sperm.
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Ap cluster neurons form at the end of a long series of neuroblast cell divisions and only in the presence of specific molecular signals.
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It is undisputable that mitosis and cytokinesis, although tightly coupled in most cells, can often be uncoupled, suggesting that these two processes are actually independent, even though they usually cooperate to bring about cell division.
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In monocotyledons, the expanding region of leaves, where cell division and tissue expansion take place, is located near the leaf insertion point.
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Cell division and cell expansion are fundamental processes for growth and development of plant organs.
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These genes are duplicated along with the chromosomes at each cell division and can be passed down from parents to their offspring.
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Every type started its development with an epidermal cell, which first underwent a periclinal cell division.
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(Dense packing in a subcolony was defined as a state in which there was no cell-free region with the area equal to or greater than the area of a daughter cell following a cell division.)
Citizendium, the Citizens' Compendium - Recent changes [en]
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In cell division the spiral appears, as well as in the DNA molecule in the cell nucleus.
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The spores do germinate, go through a few perfunctory cell divisions, then give up the ghost.
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The events in this stage of the cell cycle leading to cell division are prophase, metaphase, anaphase and telophase.
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These genes are duplicated along with the chromosomes at each cell division and can be passed down from parents to their offspring.
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With further cell divisions there would be a further unequal distribution of such determinants.
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They also found that neural stem cell division was significantly undermined by the drugs.
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The combination of CDK and cyclin will accelerate cell cycle period, the combination of CDK and CDKI will restrain cell division.
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They therefore play an important part in cell division.
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The microtubules tie the chromosomes to the mitotic spindle during cell division.
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Nobody has to remind me that frequent cell division is not by itself malignancy.
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Cell proliferation and cell fate are controlled from dividing cell division centres (called meristems) or latent pluripotent stem cells within the cambium or pericycle.
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Fruit growth of Japanese pear is characterized by an initial period of rapid cell division, followed by a long period of cell expansion, primarily by vacuolation.
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Flowering plants are multicellular organisms where cell division plays a significant role in growth and development.
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But all embryos grow by cell division.
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A plant's growth in size is both by cell enlargement and cell division.
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For those people who already have substantial hearing loss, researchers are also optimizing compounds that antagonize specific cell cycle proteins resulting in new cell division or proliferation.
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Klar proposed an explanation based on what he refers to as asymmetric cell division Ref 1.
Archive 2008-06-01
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This function of the nucleolinus, which is closely associated with a structure called the nucleolus, could clarify recent studies indicating an important role for the nucleolus in cell division.
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Biogenesis becomes reproduction; re - production becomes cellular; cell division becomes mitotic; chromosomes split longitudinally, or put more accurately, they replicate themselves, since each new chromosome is no half-chromosome but a chromosome entire; and finally, the substituent elements of the chromosomes, whether visible chromatids or invisible genes, are held likewise to replicate themselves.
GENETIC CONTINUITY
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The condition is caused by an error in cell division called nondisjunction.
Times, Sunday Times
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In the current study, the investigators found that when cancer cells with extra centrosomes enter "anaphase" - the stage of cell division when chromosomes move toward the poles of the spindle before being drawn into the new daughter cells - a few chromosomes lagged behind the others.
EurekAlert! - Breaking News
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Tarceva is designed to prevent tumor growth by blocking a signal pathway that controls cell division by binding to a cancer cell membrane receptor called epidermal growth factor (EGFR).
THE MEDICAL NEWS
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Nobody has to remind me that frequent cell division is not by itself malignancy.
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Each leaf assumes its appearance and operations through a finely balanced process of cell division and specialization.
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Cell Division Element can improve growth of tiller and accelerate the shape building of leaves.
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Even if these cells are removed from the body and kept in tissue culture, they retain their characteristics through many cell divisions.
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Its production - spermatogenesis - involves cell divisions and reorganization of chromosomal material, which generates genetic diversity.
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Here, then (Fig. 29), we see the complex processes of karyokinesis in the first two stages of egg-cell division.
Darwin, and After Darwin (Vol. 1 and 3, of 3) An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions
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If the second cell division plane is formed at right angles to the first, a _cell surface_ or _tetrad_ is formed.
Outlines of Dairy Bacteriology, 8th edition A Concise Manual for the Use of Students in Dairying
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Flowering plants are multicellular organisms where cell division plays a significant role in growth and development.
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Several different types of drugs have been developed - alkylating agents, for example, inhibit cell division, whilst anti-metabolites interfere with enzyme systems and block vital processes.
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The events in this stage of the cell cycle leading to cell division are prophase, metaphase, anaphase and telophase.
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She, however, also added chemicals which inhibit normal cell division.
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They therefore play an important part in cell division.
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Plant or vinca alkaloids are derived from plants and block cell division during mitosis.
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Early embryonic development in many plants is characterized by asymmetric cell division of the zygote, which specifies apical and basal regions.
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By continued cell divisions and enlargement of daughter cells, this tissue with its isodiametric cells rapidly expanded in both radial and tangential directions.
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They also demonstrated that Vpr engages this protein complex to ubiquitinate a yet to be discovered host factor, whose degradation triggers the arrest of cell division.
RedOrbit News - Technology
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Membrane fusion is a key event in many essential cell processes, such as exocytosis, endocytosis, membrane recycling, protein sorting and transport, fertilization, and cell division.
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If 50% of the cells which permit injection of restricted DNA are infected with at least two phage genomes and genomes are subsequently segregated by cell division, then the number of potential yielder cells should significantly increase during the course of the experiment.
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Cell division is very risky business , Campisi observes.
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In mammals, germ cells undergo a small number of proliferative mitotic cell divisions as they migrate to the gonad.
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Bovie and Hughes found that a sublethal dose of UV rays at 280 nm inhibited cell division of Paramecia.
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In the early Drosophila embryo, the male and female pronuclei fuse and then undergo 13 rounds of synchronous mitoses without cell division to produce a syncytium.
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Further tests showed that eleutherobin mimics taxol's very unusual method of blocking cell division.
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Chunaram Choudhary, a biochemist at the University of Copenhagen, found that thousands of additional proteins are acetylated, including some involved in cell division and DNA repair.
Engineering News: Latest News
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Nobody has to remind me that frequent cell division is not by itself malignancy.
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The microtubules tie the chromosomes to the mitotic spindle during cell division.
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Some inherited diseases are now known to be caused by telomerase defects, including certain forms of congenital aplastic anemia, in which insufficient cell divisions in the stem cells of the bone marrow lead to severe anemia.
The 2009 Nobel Prize in Physiology or Medicine - Press Release
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Cell division ceases with birth, and all development thereafter occurs by growth of individual cells.
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Coconut milk is recognized as a rich source of plant cell division inducers, which have become known as kinins.
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Even if these cells are removed from the body and kept in tissue culture, they retain their characteristics through many cell divisions.
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Cell divisions during development occur in a fixed sequence.
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A group of powerful pattern-generating genes called the bithorax complex, which is able to turn cell division off, is expressed at the proper time in the abdomen, and so, the authors tested its role in terminating abdominal neuroblast division.
PLoS Biology: New Articles
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The microtubules tie the chromosomes to the mitotic spindle during cell division.
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Cell division is followed by the influx of water, which drives cell extension.
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Spatial distributions of expansion rate, cell division rate and cell size in maize leaves: a synthesis of the effects of soil water status, evaporative demand and temperature
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It is a cytostatic drug that stops cell division very early in the cell cycle without causing cell death.
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Approximately four days after fertilization and after several cycles of cell division, these totipotent cells begin to specialize.
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The process of gamete formation involves a specialized form of cell division called meiosis, which is tightly regulated by molecular processes within the cell.
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Normally, the cells in a tissue have a balanced cycle of cell division, cell maturation, and cell death.
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Kinetochore proteins bind to a microtubule spindle to keep chromosomes segregated during cell division.
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Wilmut said there were so many failures because it was difficult to ensure that the empty oocyst and the donor cell were at the same stage of the cell division cycle.
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In this asymmetric cell division, the mother cell represents the soma and the daughter cell the germline.
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In this paper, the dynamic behavior of [beta] galactosidase was studied in chemostat cultures of E. coli synchronized with respect to cell division by periodic phosphate feeding at a period equal to the bacterial doubling time.
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The results described above suggest that anesthetics may inhibit yeast cell division by decreasing amino acid import.
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The relative juvenility (in terms of rooting ability, cell division rate, and in vitro responses) of epicormic and basal shoots has been widely reported in forestry species.
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In a number of species, regardless of their wall formation type, new periclinal cell divisions may occur when the tapetum differentiates.
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In addition, both monomeric and dimeric CPAP are required for accurate cell division, suggesting that the temporal dynamics of CPAP homodimerization is tightly regulated during the cell cycle.
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Zinc is a trace mineral that the body needs for basic biological processes like cell division.
NPR Topics: News
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Cell divisions during development occur in a fixed sequence.
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In a laboratory study, the key component in DEX-C20 reduced pre-adipocyte cell division by up to 35%. 3
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Vitamin B17, or Laetrile, is found plentifully in apricot stone kernels and is thought to play a role in reducing inappropriate cell division which occurs in malignant tumours.
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The value of graphic material is to attract attention and convey information in a summarised form,[sentence dictionary] e.g. cell division.
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A young animal developed from a zygote as a result of repeated cell division.
Biology Basic Facts
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In normal fertilisation the formation of male and female pronuclei is an important stage just before the maternal and paternal chromosomes start to pair up in preparation for the first cell division.
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Cell divisions during development occur in a fixed sequence.
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Increased mitogenicity (induction of cell division) with glargine vs Humulin R in a malignant cell line (osteosarcoma cells (Saos / B10).
The Diabetes Blog
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This is achieved by carefully controlling the nutrient levels in the unfermented beverage so that the small amount of added yeast only achieves one or two cell division cycles before exhausting certain key nutrients required for growth.
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Thanks to new insights over the past few months, we now know that minisatellites sit next to the drivers of genetic change, called recombination hotspots, where parental DNA is blended during cell division.
Telegraph.co.uk: news, business, sport, the Daily Telegraph newspaper, Sunday Telegraph
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The thallus and rhizoid can be distinguished by their different patterns of cell division.
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Cytokinins, gibberellins, and auxin have been applied to promote cell division during the early stages of fruit growth in many species.
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They are the first to divide in cell division and form the poles at each end of the cell.
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They are the first to divide in cell division and form the poles at each end of the cell.
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FW 2.2 as a negative regulator of cell division in tomato fruit.
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The germinal vesicle now secretes a wall, divides into two parts, and while the rest of the embyro-sac fills with endosperm cells, it produces by cell division from the upper half a short row of cells termed a suspensor, and from the lower half a mass of cells constituting the embryo.
Scientific American Supplement, No. 531, March 6, 1886
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All further cell divisions from this unicellular stage of the human being occur by simple mitosis.
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A. de Boer 2007 The trans-envelope Tol-Pal complex is part of the cell division machinery and required for proper outer-membrane invagination during cell constriction in E. coli.
Flagellum evolution -- how's your German? - The Panda's Thumb
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Cell divisions during development occur in a fixed sequence.
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Overlaid onto these signals that promote orchestrated cell division are checkpoints that ensure appropriate mitotic spindle formation, a lack of DNA damage, kinetochore attachment, and that each daughter cell has the appropriate complement of DNA.
Elites TV
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It arises from a failure of the machinery that controls cell division.
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The indicator was then parceled out to the progeny neurons as the injected cell underwent the cell divisions as the animal developed.
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Under certain conditions single cells of the gonidia become surrounded with a dense felt of hyphæ, these accumulate in numbers below the surface of the thallus, until at last they break out, are blown or washed away, and start germination by ordinary cell division, and thus at once reproduce a fresh lichen-thallus.
Scientific American Supplement, No. 531, March 6, 1886
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Cell contents uniform, dense, cell division accompanied by circumscissile debiscence of the parent cell, producing rings on the filaments.
Scientific American Supplement, No. 384, May 12, 1883
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They also report the absence of periclinal cell divisions at the base of the mutant awn.
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Cell divisions cleave the egg, like cutting a cake, and result in a multicellular structure.
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In the study, Slimaluma reduced pre-adipocyte cell division by up to 35%.
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If endosperm cell division is halted at an early stage, kernels abort and fail to set seed.
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Perhaps this observable distinction between the two inner walls is used by the mechanism responsible for spatial orientation of apical cell division.
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Arrows denote abnormal cell divisions in the suspensor and hypophysis.
PLoS Biology: New Articles
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In normal cells, the Bcr and abl genes existed separately; both were tightly regulated during cell division.
The Emperor of All Maladies
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Increased mitogenicity (induction of cell division) with glargine vs Humulin R in a malignant cell line (osteosarcoma cells (Saos/B10).
The Diabetes Blog
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To estimate the length of the period of cell division, the increasing patterns of cell number of the mesocarp in all cultivars were fitted by logarithmic curves.
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In charophytes, the first cell division of the zygote is meiosis, and their plant body is gametophytic.
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The pollen cells are formed from mother cells by a process of cell division and subsequent setting free of the daughter cells or pollen cells by rejuvenescence, which is distinctly comparable with that of the formation of the microspores of Lycopodiaceæ, etc. The subsequent behavior of the pollen cell, its division and its fertilization of the germinal vesicle or oosphere, leave no doubt as to its analogy with the microspore of vascular cryptogams.
Scientific American Supplement, No. 531, March 6, 1886
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Kernel growth is supported by cell production through mitotic cell divisions.
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The events in this stage of the cell cycle leading to cell division are prophase, metaphase, anaphase and telophase.
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In cell division the spiral appears, as well as in the DNA molecule in the cell nucleus.
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The plant phytohormone cytokinin regulates numerous growth and developmental processes by regulating cell division and cell differentiation.
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Micronuclei may originate from acentric chromosome fragments or whole chromosomes lagging behind during cell division.
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Plainly, we must conclude that the chromatin material is something of extraordinary importance to the cell, and the centrosome is a bit of machinery for controlling its division and thus regulating cell division.
The Story of the Living Machine A Review of the Conclusions of Modern Biology in Regard to the Mechanism Which Controls the Phenomena of Living Activity
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In cells undergoing the sexual cell division process called meiosis, there are lots of double-Holliday junctions and lots of crossovers.
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Bacterial physiology: Circadian 'gating' of cell division
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A team of researchers at MIT and the University of California at San Diego has shown how cell division in a type of bacteria known as cyanobacteria is controlled by the same kind of circadian rhythms that govern human sleep patterns.
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It reminds me of cell division in an embryo or the arrangement of atoms in a molecule.
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Taxotere works by inhibiting tubulin, a protein essential to cell division, thus preventing cancer cells from dividing and growing in number.
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And in doing so, the gene creates copies of its genetic material by replicating itself through intricate processes of cell division.
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The scope is to develop a robust real-time image analysis solution along with its associated development environment that will be capable of automatically segmenting and tracking cells online, detecting morphological changes (cell division/shrinkage, membrane blebbing, etc.) and generating time-series data.
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The haploid myxamoebae act as isogametes; individuals of different mating types pair and fuse to form diploid zygotes that develop into macroscopic, diploid plasmodia after repeated mitotic cycles without cell division.
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In normal fertilisation the formation of male and female pronuclei is an important stage just before the maternal and paternal chromosomes start to pair up in preparation for the first cell division.
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However, as indicated above, the salvage pathway to thymidine nucleotide synthesis is especially important in the preparation for cell division.
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The stem cells develop into specialized cells, called follicle cells, over a series of nine generations of cell divisions.
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The series of mitotic cell divisions that produces a blastula from a fertilized ovum. It is the basis of the multicellularity of complex organisms.
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Amazingly, half of the sponge's choanocyte (filtration) cells had divided and the choanocyte's cell division cycle was a phenomenally short 5.4 hours.
EurekAlert! - Breaking News
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They are formed by acentric chromosome fragments or whole chromosomes which are not incorporated into daughter nuclei during cell division.
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In nature, clones are derived from a single parental organism or cell by mitotic cell division, asexual reproduction, or parthenogenesis.
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The entire process of cell division, referred to as mitosis, takes only about an hour.
THE HIDDEN FACE OF GOD
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Mammalian cells would require a surface on which they had to attach before cell division could take place, unlike bacteria that grow in suspension.
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Using a dissecting microscope, the colonies and individual undivided cells were scored for the number of cell divisions that had occurred.
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Micronuclei can arise from acentric chromosome fragments or whole chromosomes that have not been incorporated in the main nuclei at cell division.
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For example, reproduction in the cryptomonads is asexual and primarily via longitudinal cell division with the cell dividing in either a free-swimming or nonmotile condition.
Phytoplankton
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Even if these cells are removed from the body and kept in tissue culture, they retain their characteristics through many cell divisions.
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Cytokinesis - The final stage in the process of cell division is known as cytokinesis, which usually begins during late anaphase or early telophase (before mitosis ends) as the nuclear envelope and nucleoli are reforming and the chromosomes are de-condensing (see Figure 1 (f)).
Undefined
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During growth the number of vegetative cells is increased by cell division and the space between heterocysts becomes larger.
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However, the role of BRs in cell division remains unclear, as contradictory results have been reported.
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Unlike the other green algae, the charophytes share with plants the phragmoplast method of cell division, and the asymmetric arrangement of their sperm flagella.
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Some organisms, such as nematodes and ascidians, have a remarkably precise pattern of cell divisions in early development.
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The DNA-protein complex of cell nuclei, chromatin, is condensed to chromosomes during cell division.
Press Release: The 1982 Nobel Prize in Chemistry
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The spores do germinate, go through a few perfunctory cell divisions, then give up the ghost.
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Its "epigenesis" is shown to be a literary example of the phases of cell division, with discussions of its prophase, metaphase, anaphase, and telophase.
The Dream of Mind and Machine
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The correlation was remarkable suggesting that in this real tissue cytokinins may be involved in the regulation of cell division, just as they are in cultured cells.
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The events in this stage of the cell cycle leading to cell division are prophase, metaphase, anaphase and telophase.
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We use live imaging to determine the timing and position of each cell division in the outer (abaxial) sepal epidermis and track the lineages of these cells throughout early sepal development.
PLoS Biology: New Articles
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Fat cells produce excess amounts of the female hormone oestrogen, which can speed up the natural process of cell division and so lead to a higher risk of a cancer cell being formed.
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Nobody has to remind me that frequent cell division is not by itself malignancy.
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It is these cells which will later give rise, by further cell division, to eggs or sperm.
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The proembryo from zygotic cell divisions may be divided into three parts: proper , hypoblast and suspensor.
