Plaque

Plaque
A clear area in a lawn of bacterial cells caused by the lysis of infected cells by a phage.
Plaque forming unit
A virus particle capable of forming a plaque, indicating that it is able to infect, reproduce, and kill host cells.
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plaque
A clear area in a lawn of a bacterial colony, where the bacteria have undergone lysis due to bacteriophage infection.
plasma membrane
The outer boundary of cells which is only visible with an electron microscope.
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The plaque depicts the two sides of planet Earth, and is signed by the three astronauts, as well as US President Richard Nixon.
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A viral plaque assay
Haemagglutenation assays, which quantitatively measure how many virus particles are in a solution of red blood cells by the amount of agglutination the viruses cause between them.
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Again, 4 kinds of plaques are produced: parental (470 each) and recombinant (30 each).
The smaller number of recombinants indicates that these two gene loci (h and m) are closer together (6 cM) than h and r (8 cM).
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Late in life, at 12-15 months, amyloid plaques develop in the brain and correlate with increased levels of b-amyloid (Ab)40/42 (the 40- and 42-amino-acid forms of Ab).
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Plaque lift Blot taken from plaques (usually bacteriophage on a bacterial lawn) growing on an agar plate. Normally used for detection of a plaque containing a phage with a specific inserted sequence (screening).
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Each library will be examined for purity by plaque or by colony hybridization to total rodent and total human DNA. This information will be compared with purity data derived during chromosome sorting and library construction.
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Neurofibrillary tangles and amyloid plaques are commonly found in both Down syndrome and Alzheimer's individuals.
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Multiple sclerosis is a disease of the central nervous system characterized by the destruction of the myelin sheath surrounding neurons, resulting in the formation of "plaques.
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The results of plaque assays of fd K on each E.coli K and E. coli B are diagrammed.
Phage resulting from fd K infection of E.coli B were retested and gave many plaques on both strains.
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Recent studies suggest a link between arterial plaque deposits of cholesterol, antibodies to the pneumonia-causing form of Chlamydia, and heart attacks.
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A cardiovascular disease caused by the formation of hard plaques within the arteries.
artificial selection
The selective breeding of domesticated plants and animals to encourage the occurrence of desirable traits.
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atherosclerosis Disease characterized by fatty plaques forming in the inner lining of arteries.
athlete's foot A disease caused by imperfect fungi that flourish under warm, wet conditions. Usually dissappears if the feet are kept dry.
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Biofilms form on virtually any wetted surface, so you can find them in drinking water pipes and on your teeth as dental plaque, or the scum on the side of the flower vase.
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Plaque assays showed that the efficiency of plating of Bdellovibrio suspension on lawns of the mutant was at least 107 times lower than on the original strain or on the wild-type cells from the culture.
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For tissue culture cells, cells transfected with foreign DNA are transformed if their exhibit morphology changes such as rounded cell bodies, loss of contact inhibition, and formation of plaques.
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Plaque. A clear spot on a lawn of bacteria or cultured cells where cells have been Iysed by viral infection. Plasmid (p).
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