Define isotope switching
Define isotope switching?
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This is the conversion of antibody class to other resultant from genetic rearrangement of heavy chain constant area genes in B cells. Isotope switching is as well termed as class switching.
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.
Explain the special structures of avian digestive tube and also their respective functions?
What is PCR and explain its working?
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Give brief description of ganglia?
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