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B-CHROMOSOMES

Type of chromosomes seen in the wild populations of many animal, plant, and fungi. They are not essential for the life of a species. Most of them are entirely heterochromatic.

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B-DASS INSULATION

A class of insulating materials which can withstand temperatures of up to 130 C.

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B-DISPLAY

Radar output data represented in a rectangular coordination system with range and azimuth plotted on the coordinate axes.

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B-GROUP

A group of Fraunhofer lines which can be observed in the green part of the solar spectrum due to magnesium.

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B-STAGE

A partially cured state of a thermosetting polymer, creating softer consistency upon heating, and resistance to solubility in some organic solvents.

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B-Y SIGNAL

A signal component in color televisions, that when produced collectively with a Y signal, yields a primary blue.

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BACTERIOSTAT

Any substance that inhibits the growth of bacteria.

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BACTERIOTOXIN

1. Toxic substance produced by bacteria. 2. Toxin that kills bacteria.

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BACTERIOTROPIN

Molecules from the blood which makes bacterial cell more susceptible to phagocytosis.

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BACTEROID

1. Structurally modified bacteria (rod shaped or branched forms) in the root of nitrogen-fixing plants. 2. Microorgnisms which resemble bacteria morphologically or by their action.

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