Master's Thesis from the year 2007 in the subject Biology - Zoology, grade: 1,0, University of Innsbruck (Zoologie), 90 entries in the bibliography, language: English, abstract: The transcription factor GATA-1 is essential for the development of the erythroid cell lineage in vertebrates. In this article we introduce a method to easily determine the approximately development status of red blood cells and the progression of blood formation by intensity of fluorescence in GATA-1/Ds-Red marked zebrafish. We classified the blood cells on the basis of their fluorescence intensity in 5 intensity...