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  • 1965-1969  (2)
  • 1966  (2)
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  • 1965-1969  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    The effects of X-rays on the chromosomes of locust embryos (1966)
    Springer
    Chromosoma 19 (1966), S. 300-316 
    Details
    ISSN: 1432-0886
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Irradiation of embryo cells of Schistocerca gregaria in the two hours before mitotic anaphase produces a characteristic series of responses. An apparently insensitive stage is followed by the production of “stickiness” and side-arm bridges and finally by mitotic delay. Mitotic delay is complete at doses as low as 25 R. It is argued that “stickiness’ is due to a generalised physiological process and that side-arm bridges are due to a localised exchange of discrete sub-units of the chromatid. These conclusions are based upon the kinetics of appearance and dose-response and a comparison of haploid and diploid cells in a haplo-diploid mosaic embryo.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00326920
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The effects of X-rays on the chromosomes of locust embryos (1966)
    Springer
    Chromosoma 20 (1966), S. 173-194 
    Details
    ISSN: 1432-0886
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The structure and frequency of chromatid interchange types in C-metaphase cells of embryos of Schistocerca gregaria are described at the first mitosis following irradiation at the G 2 stage of interphase. The relationship between the different interchange types and the organisation of the interphase nucleus is discussed. It is concluded that most chromatid interchanges are induced between polarised chromosomes though the occurrence of loops and to a lesser extent of terminal overlapping may subsequently modify the appearance of these aberrations at metaphase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00335206
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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