By Ernest J Parry
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Eukaryotic cells include a plurality of organelles unusual by way of their particular membranes and contents. Their biogenesis happens via development and department of preexisting buildings instead of de novo. Mitochondria and chloroplasts, which seem to be descended from prokaryotic ancestors, have retained a few DNA and the biosynthetic potential for its expression.
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Indeed, with antiserum 34)D,, the difference between 5 and 6 residues is only slightly greater than the experimental error. One would infer, therefore, that 6 glucose units should be fairly close to the upper limit in size for the antibody combining site. With respect to specificity of the combining site, the importance of the glucose configuration is illustrated by the substantially weaker inhibiting power of melibiose as compared with isomaltose, the only difference being the change in the OH on Ct4) of the non-reducing end of isomaltose from the glucose to the galactose configuration ; melibiose and rafinose are equally effective mole for mole.
Particle weight. The results are shown in Table I. Where several measurements have been made on material from the - 32 B. S. BLUMBERG AND A. G . OGSTON same source (as with umbilical cord and vitreous humour) the results are remarkably concordant. 5 x lo6; and the materials in sheep and ox synovial fluids differ markedly. The average particle weights of material in human synovial fluids vary from sample to sample: they fall within the same range as that of material from human umbilical cord, but differ from that of the ox synovial fluid complex.
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