Species

species
reproductively isolated systems of breeding populations having a similar morphology
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...
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Species: (?), n. sing. & pl. 1. Visible or sensible presentation; appearance; a sensible percept received by the imagination; an image. “The species of the letters illuminated with indigo and violet.” Sir I. Newton.
Wit, . .
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A species is a reproductively isolated population that shares a common gene pool and a common niche. This definition defines a species reproductively, genetically, and ecologically.
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A group of organisms belong to the same biological species if they are capable of interbreeding to produce fertile offspring.
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Species
In biology, a species is, loosely speaking, a group of related organisms that share a more or less distinctive form and are capable of interbreeding.
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Reactive Oxygen Species (ROS)
Reactive oxygen species are
molecules like hydrogen peroxide (#5)
ions like the hypochlorite ion (#6)
radicals like the hydroxyl radical (#3).
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Nitric oxide (.NO), a free radical species produced by several mammalian cell types, plays a role in regulation of vascular, neurological and immunological signal transduction and function. The role of .
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The jumps are inconsistent from species to species. An "article" in an insect edition of the genetic magazine will be printed differently than the same article appearing in a worm edition.
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Species with population sizes that number in the hundreds to a few thousand, while not at risk for extinction due to demographic stochasticity, still face other risks.
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Species
A group of organisms belong to the same biological species, if they are capable of interbreeding to produce fertile offspring.
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species sapiens
Linneus also developed the concept of binomial nomenclature, whereby scientists speaking and writing different languages could communicate clearly.
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Species characterized by high reproduction rates, rapid development, early reproduction, small body size, and uncertain adult survival.
opsonization ...
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Species
A classification of related organisms that can freely interbreed.
Speciation
The processes by which a single species splits into two or more species ...
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species: a group of individuals that share features and are able to interbreed under natural conditions to yield fertile offspring.
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Species richness. The number of species in an area or biological collection
Sporophyte. Diploid stage in the life cycle of a plant ...
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Species diversity increases chances of survival
Explain how favorable adaptations increase an organism's chance for survival
Explain why increased genetic variation is advantageous.
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Species: A group of individuals similar in structure and capable of interbreeding and producing fertile offspring. They are different in structure from other such groups and do not interbreed with them.
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species recovery plan A plan for restoration of an endangered species through protection, habitat management, captive breeding, disease control, or other techniques that increase populations and encourage survival.
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Species. A classification of related organisms that can freely interbreed.
Spore. A form taken by certain microbes that enables them to exist in a dormant stage. It is an asexual reproductive cell. See Asexual reproduction, Dormant.
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A species of animal which possesses an amnion. This term is most often used in the plural (amniotes) to refer to reptiles, birds, and mammals collectively.
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A species is the smallest cluster of organisms that possesses at least one diagnostic character. This character may be morphological, biochemical or molecular and must be fixed in reproductively cohesive units.
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Subspecies: a geographically defined aggregate of local populations which differ phenotypically from other such subdivisions of a species in other geographic areas.
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AllopatricSpecies species which occupy areas separated by space or time therefore cannot come into contact with each other
(allo = other different; patri = fatherland habitat) ...
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A bacteria species that normally colonize corn roots have been given a gene that enables it to produce an insect-killing toxin (pesticide).
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: A certain species of animals occurring in a particular region or period.
Fertilization
: Fusion of female and male haploid gametes to form a diploid zygote from which a new individual develops.
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target pest. A pest species that a control action is intended to destroy.
teliospore. Thick-walled dark spore of rust and smut fungi that is able to survive adverse conditions.
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The evolution of new species or sub- species to fill unoccupied ecological niches. Aerobe. A microorganism that grows in the presence of oxygen. See Anaerobe. Agarose gel electrophoresis.
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Genetic linkage map -- a chromosome map showing the relative positions of the known genes on the chromosomes of a given species. Genetic screening -- testing groups of individuals to identify defective genes capable of causing hereditary conditions.
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family, subfamily, subspecies.
Change of rank When a name is moved from one level of the classification system to another, e.g., when De Lotto (1955) moved Ceroplastes destructor brevicauda from the subspecies to the species rank C.
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electron carrier A protein or other chemical species, such as a cytochrome or coenzyme Q, that can reversibly gain and lose electrons.
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Transformation Usually refers to passive uptake of DNA by cells, although in nature some bacterial species have a specific active uptake system.
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An organism that is different from other organisms of the same species due to genetic differences.
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Each different species of grass grows best in a particular grassland environment (determined by temperature, rainfall, and soil conditions).
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The evolutionary history of a species—which tells the characteristics of the various species from which it descended—together with its genealogical relationship to every other species is called its phylogeny.
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Sequence comparisons suggest recent horizontal transfer of many genes among diverse species including across the boundaries of phylogenetic "domains".
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Evolutionary Footprinting: One can infer which portions of a gene are important by comparing the sequence of that gene with its cognates from other species.
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The molar extinction coefficient (e) of a species is defined by the equation A = ebc, where A is the absorbance of the solution, b is the path length, and c is the concentration of the species.
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A blot can prove whether that one species of RNA or DNA is present, how much is there, and its approximate size.
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A chromosome map of a species that shows the specific physical locations of its genes and/or markers on each chromosome. Physical maps are particularly important when searching for disease genes by positional cloning strategies and for DNA sequencing.
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bindin - acrosomal protein (of sea urchin sperm) mediating species-specific recognition and binding between the sperm and the egg once the sperm has penetrated the egg jelly.
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A consensus sequence (A/GCCATGG) for mammalian translation initiation site. For species-specific translation initiation sequences, please visit Primo.
Other Resources
PubMed Google ...
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Restriction fragment length polymorphisms (RFLP) are variation in DNA fragment banding patterns of electrophoresed restriction digests of DNA from different individuals of a species.
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monoecious
Referring to a plant species that has both staminate and carpellate flowers on the same individual.
morphogenesis
The development of body shape and organization during ontogeny.
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Homologies: Similarities in DNA or protein sequences between individuals of the same species or among different specie s.
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TRANSGENE - A foreign gene which has been introduced into the germ line of an animal species.
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