Precipitation reaction
Briefly explain regarding precipitation reaction.
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When a soluble antigen joins with corresponding antibody in the presence of electrolyte at a suitable temperature and pH, the antigen-antibody complex forms an insoluble precipitate. Antibodies that form precipitate ate called precipitants.
Write the name of an RNA sequence which codifies one amino acid?
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Repeated external stimulus is more attention -attracting than a single time. Repetition increases our sensitivity and alertness to the stimulus. Thus, greater the frequency with which a sensory stimulus is presented, the greater the chances we select it for attention.
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