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Polarity


Polarity
Gene conversion shows polarity within a gene.
The observations are consistent with preferential initiation of recombination events at a hotspot, coupled with different extents of heteroduplex formation.
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Definition of polarity : ...
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Polarity
Nonpolar molecules diffuse faster through the lipid portion of the membranes.
Ions ...
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polarity of characters -- The states of characters used in a cladistic analysis, either original or derived.
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polarity In systematics, the ordering of alternative states of a taxonomic character from ancestral to successively derived conditions in an evolutionary transformation series.
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The polarity of an actin filament can be determined by decorating the microfilament with myosin "S1" fragments, creating and barbed (+) and pointed (-) end on the filament. An S1 fragment is composed of the head and neck domains of the myosin II.
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Changed polarity of the membrane, the action potential, results in propagation of the nerve impulse along the membrane. An action potential is a temporary reversal of the electrical potential along the membrane for a few milliseconds.
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EGFR transmembrane receptor- tk - EGF-R homology - during oogenesis helps set up egg polarity, determines the identity of cells in the ectoderm; during larval stages participates in the development of the eye and wing.
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There were what we call "maternal coordinate" genes, "Gap genes, "Pair-Rule" genes, "segment polarity" genes, and "homeotic" genes. They basically act in that kind of hierarchical order to set a pattern of the embryo.
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This work deals with issues regarding the ion polarity combination, viz., positive oligonucleotides/negative charge transfer agent versus negative oligonucleotides/positive charge transfer agent.
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polarity Depending on the context meaning one of two things. Either the nonuniform distribution of electrons in a molecule resulting from elements with differing electronegativities bonding; or the distinction between the 5' and 3, ...
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A myosin bundle, therefore, has a central, bare zone and an array of protruding heads of opposite polarity at each end.
Bipolar myosin-II filaments (12-14nm diameter, 1.6 mm long) are found in striated muscle.
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As the particles approach a plate they are accelerated towards it by an opposite polarity charge applied to the plate.
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As the action potential passes (B), the polarity is reversed. Then the outflow of K+ ions quickly restores normal polarity (C).
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Conservative Substitution: A nucleotide mutation which alters the amino acid sequence of the protein, but which causes the substitution of one amino acid with another which has a side chain with similar charge/polarity characteristics ...
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Polar mutation
A mutation which affects not only the gene in which it is located but other genes located immediately downstream on the DNA molecule. See Rho dependent polarity .
Polyacrylamide gel electrophoresis
See PAGE.
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