Empirical genetic laws published in Brno before Mendel was born

Article Abstract:

Discussions of the Sheep Breeders Society of Brno, Czech Republic, from 1816 to 1819 revealed that members were already studying the transfer of parental traits to progeny of sheep. Several members had formulated hypotheses on breeding. E. Festetics composed four genetic laws in which he connected heredity with health and vigor and rejected climatic influence on heredity. On the other hand, J.M. Ehrenfels and C. Andre believed that the constancy of inheritance was under climatic influence and that inbreeding would increase the rate of degeneration in a race.

History, Genetic aspects, Heredity, Sheep breeding

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Mendel's opposition to evolution and to Darwin

Article Abstract:

A careful study of Mendel's Pisum paper published in 1866 reveals that his ideas are antievolutionary and contradict Darwin's book, 'The Origin of Species,' published in 1859. The type of transmission on which Mendel's theory is based is an exception rather than a rule. Darwin's theory stresses differential survival and reproductive success while Mendel's theory is based on equality through all the stages of the life cycle. Mendel's heredity without mutation contradicts Darwin's heredity theory of variation and mutation.

Analysis, Evolution (Biology), Evolution

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Another look at some of Mendel's results

Article Abstract:

A simple chi-square test on heterozygosity experiments at two loci conducted by Mendel reveals that results from these experiments match the expected values very well, suggesting the questionability of Mendel's experiments. It is possible that Mendel or his assistants omitted values from several other tests and manipulated the results from only five experiments to concur with each other. However, there may have been an unusual coincidence causing the occurrence of identical results in all five tests.

Evaluation, Experimental design, Research design

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