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  • Articles  (4)
  • Drosophila  (4)
  • Springer  (4)
  • 1975-1979  (4)
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  • Articles  (4)
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  • Springer  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Preparation of cell cultures fromDrosophila melanogaster embryos (1979)
    Springer
    Methods in cell science 5 (1979), S. 1019-1022 
    Details
    ISSN: 1573-0603
    Keywords: cell cultures ; Drosophila ; cell differentiation ; embryos
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00919723
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Polymorphism at the α-glycerophosphate dehydrogenase locus in Drosophila melanogaster. I. Properties of adult allozymes (1975)
    Springer
    Biochemical genetics 13 (1975), S. 175-188 
    Details
    ISSN: 1573-4927
    Keywords: allozymes ; Drosophila ; populations ; Michaelis constant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A biochemical comparison was made between α-glycerophosphate dehydrogenase allozymes from Drosophila melanogaster. Enzymes extracted from the three major genotypes were indistinguishable in terms of their pH optima and thermal stabilities. Distinctive differences were observed for three parameters; temperature dependence of specific activity, temperature dependence of Km, and reaction rate constancy over a physiological temperature range. These results are discussed in terms of a model of balancing selection and the existence of spatial and temporal allele frequency clines in natural populations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486013
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  • 3
    Electronic Resource
    Electronic Resource
    Behavioral role of the sexcombs inDrosophila melanogaster andDrosophila simulans (1977)
    Springer
    Behavior genetics 7 (1977), S. 349-357 
    Details
    ISSN: 1573-3297
    Keywords: Drosophila ; sexcombs ; sexual behavior ; strain differences
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract The sexcombs were amputated from males of three strains ofDrosophila melanogaster and one strain ofD. simulans in order to assess the importance of these structures in the sexual behavior of these species. InD. melanogaster the sexcombs are important in attempts to copulate with the female. Their removal delays copulation but does not suppress it entirely. Other aspects of courtship are not influenced by removal of the sexcombs. Strain differences in quantitative aspects of courtship were found, and also in the insemination rates of females by males without sexcombs. The present evidence suggests that the sexcombs are primarily structures adapted to grasping the female securely during the act of intromission.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01077448
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  • 4
    Electronic Resource
    Electronic Resource
    Adaptiveness of a rare male mating advantage under heterosis (1979)
    Springer
    Behavior genetics 9 (1979), S. 51-54 
    Details
    ISSN: 1573-3297
    Keywords: rare male mating advantages ; sexual selection ; heterosis ; Drosophila
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract It is shown that minority mating advantages, so commonly observed inDrosophila, would be selectively advantageous in a heterotic system. When an allele is below the equilibrium frequency maintained by heterosis, females mating with that homozygote produce offspring of highest mean fitness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01067121
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