Answer:
For example, IgG, the most common antibody, is present mostly in the blood and tissue fluids, while IgA is found in the mucous membranes lining the respiratory and gastrointestinal tracts. classes of antibodies. The five main classes of antibodies (immunoglobulins): IgG, IgA, IgD, IgE, and IgM.
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The A antibodies will produce A antibodies and B antibodies will produce B antibodies
A) The answer is allosteric interaction where activators or repressors bind to a protein, other than the protein active site, hence changing the protein conformation. This interaction occurs between the heme subunits of haemoglobin.
b) Through protonation. The amino group of the alpha subunits and the histidine C-terminal of beta subunits acquire H+ when the blood has low pH. Low pH in the blood is due to accumulation of carbon dioxide and consequent formation of carbonic acid. Protonation of the residues cause allosteric interaction, due to ionic interaction, of the subunits hence resulting to conformation change of haemoglobin between T-state and R-state
Answer:
the hypothesis that evolutionary development is marked by isolated episodes of rapid speciation between long periods of little or no change.
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