Troponin C is closely related to the ubiquitous 

Ca2+-binding protein calmodulin

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#Id: 9559

#XL - T Zoology

Mutationist - Theories were advanced by some geneticists who observed that discretely different new phenotypes can arise by a process of mutation.

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#Id: 9560

#XL - T Zoology

They supposed that such mutant forms constituted new species and thus believed that natural selection was not necessary to account for the origin of species. The last influential mutationist was Richard Goldschmidt

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#XL - T Zoology

Ronald A. Fisher, John B. S. Haldane and Sewall Wright - which showed that mutation and natural selection together cause adaptive evolution.

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#Id: 9562

#XL - T Zoology

Neutral theory of molecular evolution

Developed by Motoo Kimura, who argued that most of the evolution of DNA sequences occurs by chance (genetic drift) rather than by natural selection. 

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#Id: 9563

#XL - T Zoology

Theory of recapitulation - Ernst Haeckel

He proposed that the embryonic development of an individual organism (its ontogeny) followed the same path as the evolutionary history of its species (its phylogeny).

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#Id: 9564

#XL - T Zoology

Bergmann’s rule: Populations in colder climates tend to have greater body mass than those in warmer climates.