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Origin of replication
Discrete positions on a chromosome or vector DNA where replications are initiated. Vectors must have at least one origin of replication sequence for their replication in host cells.
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Origin of life
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This article focuses on modern scientific research on the origin of life. For alternate uses, see origin of life (disambiguation).
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Origin of life
This article focuses on modern scientific research on the origin of life. For alternate uses, see origin of life (disambiguation).
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The Origin of Species (full title On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life) by British naturalist Charles Darwin is one of the hallmark works of biology.
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The Origin of Species Read the book by Charles Darwin that started it all. The full text of the book is online.
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Where did life originate and how?
Extra-terrestrial: In 1969, a meteorite (left-over bits from the origin of the solar system) landed near Allende, Mexico.
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To account for the origin of life on our earth requires solving several problems: ...
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Origin
Short for origin of replication. The specific nucleotide sequence at which DNA synthesis is initiated. Cf. transcription start site and terminator.
Related Terms: DNA replication ...
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Originally identified as a coactivator for CREB, enhances transcription mediated by many other transcription factors
Functions as a coactivator of Ci; is needed for ptc expression (Akimaru, 1997) and 4bslacZ (my data)
Genetic interactions ...
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Originally written in FoxPro, the Helix database was converted to an Informix-based system in the fall of 1997.
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Origin of replication (ori)
The nucleotide sequence where DNA replication is initiated. Determines the specific position on a DNA molecule where DNA replication begins.
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origin of replication
A specific sequence of bases in a nucleic acid molecule to which the enzymes responsible for replicating the nucleic acid bind to initiate the copying process.
osmoconformer ...
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Originally, we were focused on one population or a small group of organisms, because that was feasible, and I think that over time, people have realized that such a concentrated effort on one population often doesn't work, ...
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Original DNA:
Frameshift mutation:
THE BIG RED ANT ATE ONE FAT BUG
THB IGR EDA NTA TEO NEF ATB UG?
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ORIGIN - A site within a DNA sequence of a chromosome, plasmid, or non-integrated virus at which replication of the DNA is initiated.
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Origin of replication. The nucleotide sequence at which DNA synthesis is initiated.
OSHA. See Occupational Safety and Health Administration.
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Origin of replication: Nucleotide sequences present in a plasmid which are necessary for that plasmid to replicate in the bacterial host. (Abbr. "ori") ...
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origin
The less movable attachment point of a muscle.
Covered in Lab 15 Rat Muscular and Digestive Systems
origin of life
the process by which biomolecules, subcellular structures, and living cells have come into existence.
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Origin of replication: A site at which DNA replication is initiated. There is only one in bacterial chromosomes, but numerous origins in eukaryotic chromosomal DNA. (Abbr. "ori") ...
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: Originally described and modelled in an analysis of
polydactyly
in guinea pigs (
Wright S, 1934
) and applied to human genetics by Douglas Falconer (Falconer DS.
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The Origin of Species
Charles Darwin; Hardcover; Buy New: $7.99
32.
The Body Electric: Electromagnetism and the Foundation of Life
Robert Becker; Paperback; Buy New: $10.47 ...
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myogenic Originating in muscle, such as heartbeat arising in vertebrate cardiac muscle because of inherent rhythmical properties of muscle rather than because of neural stimuli.
myoglobin The oxygen-transporting pigment of muscle tissue.
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[L. primordialis - original]. An immature ovarian follicle that will develop into successively more mature follicles as the oocyte matures.
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Aster microtubules originating around centrioles in dividing animal cells from which the mitotic spindle eventually forms
(aster = star) ...
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(See Oncogene.) Centers of origin. Usually the location in the world where the oldest cultivation of a particular crop has been identified. Central dogma.
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Imprinting -- a chemical modification of a gene allele which can be used to identify maternal or paternal origin of chromosome.
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Ecological succession: (according to the original theory): the development of an ecosystem through a predictable series of communities until a final, stable community (the climax community) in balance with the regional climate is attained.
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Lindinger proposed the emendation Hemiberlesea for the armored scale Hemiberlesia indicating that it was originally improperly formed.
Holotype A specimen that serves as the standard bearer of a species or subspecies name.
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Artificial chromosome A vector constructed from host cell chromosomal elements such as origin of replication, telomeres and centromere (in eukaryotes).
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aldose A simple sugar in which the carbonyl carbon atom is an aldehyde alkaloids Nitrogen-containing organic compounds of plant origin. They are usually basic, and often have biological activity. An example would be caffeine.
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One of the central, organizing concepts in biology is that all life has descended from a common origin through a process of evolution.
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In the original model, this nick was at a position homologous to the first nick. Symmetric heteroduplexes would result.
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As many explosives have only been present in the environment for 10 years, and with similar molecules not known in Nature, the origin of enzymes specialized for the breakdown of explosives is of particular interest.
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A class of cytoplasmic filaments of animal cells so named originally because their diameter (nominally 10nm) in muscle cells was intermediate between thick (myosin) and thin (actin) filaments.
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polarity of characters -- The states of characters used in a cladistic analysis, either original or derived.
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Two successive nuclear divisions (with corresponding cell divisions) that produce haploid gametes (in animals) or haploid sexual spores (in plants and fungi) having one-half of the genetic material of the original cell.
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Native (insect or plant): Of local origin, not intentionally or accidentally introduced.
Natural control: The suppression of pest populations by naturally occurring biological and environmental agents.
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Organic nutrients. Nutrients in the form of molecules synthesized by or originating from other organisms
Osmoconformer. An organism whose body fluids change directly with a change in the concentrations of dissolved ions in the external medium ...
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Diseases in which abnormal cells divide and grow unchecked. Cancer can spread from its original site to other parts of the body and can also be fatal if not treated adequately.
explained:
Listen to a detailed explanation.
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Mitosis: The production of c ells that are genetically identical to the original cell. Compare to meiosis.
mRNA: See messenger RNA.
Mutation: A spontaneous or induced change in the DNA of a cell.
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A23187 - mobile-carrier calcium ionophore (allows Ca++ ions to cross cell membranes) originally isolated as an antibiotic from Streptomyces chartreusensis. Also known as Calcimycin, Antibiotic A23187.
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I began writing this book while employed by a major Midwestern company which was at the time venturing aggressively into the biotechnology arena. It grew out of an original work which was, in its infancy, ...
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English walnut. The walnut species (Juglans regia) used for the selection of commercial scion cultivars; origin believed in Persia (= Persian walnut).
entomophagous nematodes. Nematodes that eat insects.
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serotonin - increase vascular permeability and smooth muscle contraction. Originates from platelets ...
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Mitosis: the process of cell division in which a single cell produces two daughter cells which are identical to on another, and to the original parent cell.
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