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separation at biology dictionary

Vesicle

... We report on the use of coupled high resolution separation and high mass accuracy and sensitivity Fourier trans form ion cyclotron resonance (FTICR) mass spectrometry to character ize the protein content of outer membrane vesicle s from the ... Full article >>> pinocytosis : when the ...

Variety

...ving organ isms A of , based on data, showing the separation of the three domain s , , and as described initially by . Full article >>> Understand the variety of organ isms inhabiting Earth. Analyze the impact of habitat alteration on organ isms. - ... Full article >>> Vir...

Tertiary Structure

...rticle >>> In DNA it refers to the separation of the two component strand s caused by the breaking of the hydrogen bond s. In proteins , it refers to disruptions in the secondary and tertiary structure of the protein , destroying its activity. Full article >>> Knowledge of t...

Spindle Fibers

...e >>> During mitosis , chromosome separation requires spindle fibers made of microtubules ; spindle inhibitors stop the synthesis of microtubules . Because most adult cells don't divide often, they are less sensitive to these drugs than are cancer cells . Full article >>> ...

Speciation

...2; speciation that results from the geographic separation of two or more population s of species Source: ...ce -- Speciation which occurs as a result of the separation and subsequent isolation of portions of an orginal population . Last updated:2006-08-27 ... Full a...

Sister Chromatids

...atids Definition: Chromosome resulting from the separation of sister chromatids . Full article >>> Centromere the central region of a chromosome which holds the sister chromatids together (centro = center; mer = part) Cerebellum the wrinkled-looking posterior part of the brain (...

Sister chromatid

...tid s Definition: Chromosome resulting from the separation of sister chromatid s . Full article >>> Centromere the central region of a chromosome which holds the sister chromatid s together (centro = center; mer = part) Cerebellum the wrinkled-looking posterior part of the brai...

Segregation

segregation Mendel 's first law; The separation of the members of a homologous pair of chromosome... Full article >>> segregation the separation of homologous chromosomes during anaphase 1 of meiosis , producing gametes containing only on...

Segment

...ment a division ; a section. segregation the separation of homologous chromosomes during anaphase 1 of meiosis , producing gametes containing only one allele of each gene . Full article >>> A segment of DNA with an identifiable physical location on a chromosome and whose in...

Resolution

...;>> limit of resolution - the limiting separation at which two objects can still be seen as distinct. Full article >>> High- resolution live- cell imaging techniques have recently provided structural and biochemical insight into the differential use of matrixdegrading enzymes i...

Proteomics

... proteome , has largely been practiced through the separation of proteins by two dimensional gel electrophoresis . Full article >>> Proteomics The large- scale study of proteins , using biochemical or physical methods. Full article >>> Expasy The ExPASy (Expert Protein A...

Proteins

...eby becoming biologically inactive. For DNA , the separation of the two strand s of the double helix . Full article >>> [3] Proteins are the workhorse chemicals in the cell . There are two major kinds of proteins , structural proteins and enzymes . Typically an enzyme is optimized to ...

Prokaryote

...troduced by Carl Woese in 1990 that emphasizes his separation of prokaryote s into two groups, origin ally called Eubacteria and Archaebacteria . Full article >>> Hair-like structure attached to a cell , used for locomotion in many protist s and prokaryote s . Full article >>&...

Prokaryotes

...troduced by Carl Woese in 1990 that emphasizes his separation of prokaryotes into two groups, origin ally called Eubacteria and Archaebacteria . Full article >>> Hair-like structure attached to a cell , used for locomotion in many protist s and prokaryotes . Full article >>>...

Phylogenetic tree

...g things, based on r RNA gene data, showing the separation of the three domain s bacteria , archaea, and eukaryotes as described initially by Carl Woese. Full article >>> The evolution ary process whereby one species evolves into another without any splitting of the phylogenetic tree ....

Peptides

...character istic pattern of fragments formed by the separation of a mixture of peptides resulting from hydrolysis of a protein or peptide . AKA peptide finger-printing. Full article >>> The proposed strategy includes chemical crosslinking of interacting protein pairs, enzymatic digesti...

Nucleic acids

...lite RNA s ... Full article >>> The separation of nucleic acids or proteins , on the basis of their size and electrical charge, by measuring their rate of movement through an electrical field in a gel . gene [Gk. genos, birth, race; L. genus , birth, race, origin ] ... Full article >...

Monera

...haracter istic of the three- domain method is the separation of Archaea and Bacteria , previously grouped into the single kingdom Bacteria (sometimes Monera ). Full article >>> Monera n - simplest kingdom containing prokaryotic cells (mostly bacteria ), some of which can create the...

Mitosis

...early in mitosis . During mitosis , chromosome separation requires spindle fibers made of microtubules ; spindle inhibitors stop the synthesis of microtubules . Full article >>> mitosis The multistep process ( interphase , prophase , metaphase , anaphase , telophase ) in eukaryotic ...

Microtubules

...e >>> During mitosis , chromosome separation requires spindle fibers made of microtubules ; spindle inhibitors stop the synthesis of microtubules . Because most adult cells don't divide often, they are less sensitive to these drugs than are cancer cells . Full article >>> ...

Mendel

...A mutation . Full article >>> the separation of homologous chromosomes during anaphase 1 of meiosis , producing gametes containing only one allele of each gene . Such an occurrence is the physical mechanism underlying the first law of Mendel ian genetics and is particularly ... Fu...

Mapping

...character istic pattern of fragments formed by the separation of a mixture of peptides resulting from hydrolysis of a protein or peptide . AKA peptide finger-printing. Full article >>> Chromosome mapping studies on the organ ism facilitated their work. Neurospora can be grown on a m...

Macromolecules

...#62;> Used to make polyacrylamide gel s for separation of macromolecules by electrophoresis . Full article >>> Polymers are a sub class of macromolecules . Polymerization is the chemical process in which a series of simple structural units (monomers) combine to form a large chainlike...

Lysis

...character istic pattern of fragments formed by the separation of a mixture of peptides resulting from hydro lysis of a protein or peptide . AKA peptide finger-printing. Full article >>> polarity of character s -- The states of character s used in a cladistic ana lysis , either orig...

Lipids

...el filtration A chromatographic procedure for the separation of a mixture of molecule s on the basis of size. Full article >>> The following books are available online at Portland Press: Biochemical Society Symposia vol 72: Lipids , Rafts and Traffic Biochemical Society Symposia vol 71: Fr...

Kinetochore

...karyotic chromosome to the spindle apparatus for separation during mitosis ; adjacent to the centromere . Full article >>> A kinetochore ; the constricted region of a nuclear chromosome , to which the spindle fibres attach during division . A B C D E F G H I J K L M N O P Q R S T U V W X Y...

Ion channel

...icrofabricated twin-T injector on a microchip to a separation capillary . Full article >>> Channel proteins that span the cell membrane form the ion channel s. To determine the structure of proteins , scientists have often used X-ray crystallography. Full article >>> Use of ...

Intergenic

...or of the number of operon s in the genome . The separation merely changes the frame and guarantees that the read through is efficient. Full article >>> Intergenic region s. DNA sequence s located between genes that comprise a large percentage of the human genome with no known function....

Independent assortment

...ndependent assortment the random arrangement and separation of chromosomes during meiosis , giving all possible combinations in equal frequency. This process explains the random distribution in the gametes of genes or homologous chromosomes . Full article >>> law of independent assortmen...

Hydrolysis

...character istic pattern of fragments formed by the separation of a mixture of peptides resulting from hydrolysis of a protein or peptide . AKA peptide finger-printing. Full article >>> However, more recent studies suggest that receptor function in AD may be compromised due to disrupted...

Genotype

...present in an individual Geographic isolation: the separation of a population from the rest of its species due to some physical barrier, such as a mountain range, an ocean, or great distance. Full article >>> 0505 in the next generation because of the chance production of a few more or less ...

Genetics

... of interest. Full article >>> the separation of homologous chromosomes during anaphase 1 of meiosis , producing gametes containing only one allele of each gene . Such an occurrence is the physical mechanism underlying the first law of Mendel ian genetics and is particularly ... Fu...

Gel electrophoresis

...resis ( PFGE ) An electrophoresis technique for separation of large DNA . Alternating electrical field is ap...electrophoresis (jell eh-lek-troh-for-ee-sis) The separation of nucleic acids or proteins , on the basis of their size and electrical charge, by measuring the...

Gel

...electrophoresis (jell eh-lek-troh-for-ee-sis) The separation of nucleic acids or proteins , on the basis of ...el filtration A chromatographic procedure for the separation of a mixture of molecule s on the basis of size. Full article >>> Southern Blot D...

Eukaryotes

...g things, based on r RNA gene data, showing the separation of the three domain s bacteria , archaea, and eukaryotes as described initially by Carl Woese. Full article >>>...

Eukaryote

...g things, based on r RNA gene data, showing the separation of the three domain s bacteria , archaea, and eukaryote s as described initially by Carl Woese. Full article >>>...

Ethidium Bromide

...d. Other methods can also be used to visualize the separation of the mixture's components on the gel . Full article >>> The DNA bands must be stained to make them visible. Ethidium bromide -stained DNA will fluoresce when illuminated with UV light. PCR techniques are used to produce suffi...

Electrophoresis

...62;>> An electrophoresis technique for separation of large DNA . Alternating electrical field is ap...ll article >>> electrophoresis The separation of different proteins or nucleic acids within a gel matrix that is subjected to an electric fi...

Domain

...troduced by Carl Woese in 1990 that emphasizes his separation of prokaryotes into two groups, origin ally called Eubacteria and Archaebacteria . Full article >>> Chapter 21 BAR domain s and membrane curvature: bringing your curves to the BAR Jennifer L. Gallop1 and Harvey T. McMahon1 MRC L...

Denature

...its biological activity. In DNA it refers to the separation of the two component strand s caused by the breaking of the hydrogen bond s. Full article >>> denature d enzymes lose their catalytic power denature d antibodies can no longer bind antigen A mutation in the gene encoding...

Denaturation

...eby becoming biologically inactive. For DNA , the separation of the two strand s of the double helix . Full ...tion, denaturation , preconcentration, injection, separation and detection in a parallel fashion. Full article >>>...

Daughter Cell

... Cytochrome c, for example cytokinesis The final separation of daughter cell s following mitosis . Full article >>>...

Cytokinesis

... Cytochrome c, for example cytokinesis The final separation of daughter cell s following mitosis . Full article >>>...

Cytochromes

... Cytochrome c, for example cytokinesis The final separation of daughter cell s following mitosis . Full article >>>...

Contig

... is a driving force behind species fission; the separation of a single contig uous species into multiple non- contig uous variants. Full article >>> Alaska is the only state that is both in North America and not part of the 48 contig uous states. Alaska is the largest state in the United S...

Conformation

...eby becoming biologically inactive. For DNA , the separation of the two strand s of the double helix . Full article >>> Denature the process whereby a protein looses its native conformation (de = from down out; nata = born produced) Dendrite the "incoming" end of a neuron (dendro ...

Chromatography

...family of analytical chemistry techniques for the separation of mixtures. It involves passing the sample, a mixture which contains the analyte, in the "mobile phase", often in a stream of solvent, through the "stationary phase. Full article >>> Paper Chromatography This technique provides an e...

Character

...character istic pattern of fragments formed by the separation of a mixture of peptides resulting from hydrolysis of a protein or peptide . AKA peptide finger-printing. Full article >>> The lipid binding properties of apolipo protein (apo) AIMilano, a molecular variant of human apoli...

Cellular respiration

... Cytochrome c, for example cytokinesis The final separation of daughter cell s following mitosis . Full article >>>...

Blastomere

...ula . Full article >>> Blastomere separation (sometimes called "twinning" after the naturally occurring process that creates identical twins_ involves splitting a developing embryo soon after fertilization of the egg by a sperm ( sexual reproduction ) to give rise to two or ... Full ar...

Anaphase

...ell division . Full article >>> the separation of homologous chromosomes during anaphase 1 of meiosis , producing gametes containing only one allele of each gene . Full article >>> : Separation of homologous chromosomes during anaphase of mitotic or meiotic division ...

Allele

...a bb or aa Bb. Full article >>> the separation of homologous chromosomes during anaphase 1 of meiosis , producing gametes containing only one allele of each gene . Full article >>> Used in detection of genetic disease allele s etc. RT-PCR PCR amplification from...

Affinity chromatography

...62; Affinity chromatography is a biochemical separation method that combines size fractionation capability of gel permeation chromatography with the ability to design a stationary phase that reversibly binds to a known subset of molecule s. Full article >>> Any protein that binds tig...

Acrylamide gels

...#62;> Used to make polyacrylamide gel s for separation of macromolecules by electrophoresis . Full ar... travel farther through the media ( gel ) in which separation is carried out. Agarose and acrylamide gels are the media commonly used for electrophoresis of ...
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(Date:10/10/2008)...kleback fish, Gasterosteus aculeatus , is one of ... and has been a particularly useful model for unde...history and morphology caused by different ecologi...ls from molecular and genetic to developmental and...tion level, it has proven far more complex than ev...
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