Richard D Maxson

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The quantitative immunological technique of micro-complement fixation (MC'F) has been routinely used during the past decade to assess evolutionary relationships among living vertebrate species. The large data base that has been generated, along with the excellent correlations between immunologically measured genetic distances and paleontologically derived(More)
Micro-complement fixation studies of eastern and western populations of the North American tree frog Hyla chrysoscelis reveal they have been genetically isolated for about 4 million years. Immunological comparisons of populations of the cryptic tetraploid Hyla versicolor indicate a recent origin, from hybridization between eastern and western H.(More)
Based on immunological comparisons of the serum albumins ofCraspedoglossa andZachaenus with antisera to albumin of several species ofCycloramphus, it is concluded that morphological and biochemical evolutionary rates have not been comparable within the study group. Taken together, the morphological and biochemical information demonstrate that whileZachaenus(More)
We have previously put forward a hypothesis that explains how and why microcomplement fixation (MC’F) works (Maxson and Maxson 1986). This is called the assortment-exclusion hypothesis and can explain the high sensitivity of the MC’F reaction, justify the logarithmic basis for immunological distance (ID), and confirm the presumed phylogenetic nature of the(More)
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