Titlebook: Drosophila Genetics; A Practical Course Ulrich Graf,Nancy Schaik,Friedrich E. Würgler Book 1992 Springer-Verlag Berlin Heidelberg 1992 Alle

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Transmission Genetics,Inheritance is the transmission of genetic information from parents to offspring. Most of the genetic information is located on the chromosomes. The principles of chromosomal inheritance were first discovered experimentally by Gregor Mendel in 1865 and rediscovered by Correns, von Tschermak and de Vries in 1900.

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Cytology and Cytogenetics,Two tissues from the last larval instar (L3) are suited for cytological analysis: (1) The neural or cerebral ganglion (= supraesophageal ganglion) for mitotic chromosomes and (2) the salivary glands for giant chromosomes.

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Ptsd429

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General,too small) size, ease of culture, short generation time, large progeny size, low chromosome number, and giant salivary chromosomes. Morgan and his students used Drosophila to elucidate the mechanisms of Mendelian inheritance and to construct the first linkage maps.

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Book 1992hysics have assumed an integral role in biological research. This is especially true in ge­ netics, where the cloning of genes and the manipulation of genomic DNA have become in many organisms routine laboratory procedures. These noteworthy advances, it must be empha­ sized, especially in molecular

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Phenogenetics,type and environment on the expression of particular genes, the results show that genes do not usually function independently of each other and of the environment but represent a complex gene-effect network.

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https://doi.org/10.1007/978-3-642-96344-5zygous females and can be transmitted to the next generation. The “Muller-5” or “Basc” method (see Figure 21) makes use of a so-called “balancer chromosome” which carries two inversions as well as the dominant marker Bar (B, bar eyes) and the recessive marker white-apricot (w., apricot eyes).