Evolution heteromorphic

Gene mapping detection of heteromorphisms and determination of parental origin of heteromorphisms Detection of gene mutations Characterization of structural aberrations Identification of marker chromosomes Characterization of tumor cells Chromosome and karyotype evolution Spatial topography of chromosomes... 

One of the important aspects of the biochemical evolution of Vertebrates has been the acquisition by the cells of the mesoderm of enzyme systems for the biosynthesis of new types of steroid (heteromorphic evolution). One of the physiological effects of this evolution is the ionic regulation brought about by the action of the corticosteroid hormones at the urinary tube. In the Amphibiae this action is established in conjunction with a pre-existing system, that of the regulation controlled by the adenohypophysis. 

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