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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 309 (1984), S. 635-637 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Three Ubx mutations have previously been mapped by genetic recombination. All were found to lie at or close to the right-hand end of the Ubx unit defined by chromosome rearrangements1'7'8. When the DNA of these and other Ubx 'point' alleles was examined, four apparently point Ubx mutations were ...
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 308 (1984), S. 402-403 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE beginnings of the molecular analysis of homoeotic genes, which seem to control segment determination in the fruit fly Drosophila melanogaster, have raised hopes that at long last an understanding of the relationship between the genetic information an individual inherits and its ...
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 318 (1985), S. 567-569 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The DNA lesion in Cbx1 is an insertion of M7 kilobases (kb) into intron sequences of the Ubx transcription unit. The inserted sequences duplicate, in inverse orientation, a region normally located 27-44 kb upstream from the Ubx transcription start site5'6. Two models have been proposed to explain ...
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 307 (1984), S. 113-114 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHY does the Notch locus of Drosophila melanogaster attract so much attention, when the phenotype for which it is named is merely the generation of notches in the tips of the wings? The locus has for example now been cloned by two independent groups1"3. There are good reasons for this interest. ...
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 319 (1986), S. 806-806 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] From Gene to Animal: An Introduction to the Molecular Biology of Animal Development. By David De Pomerai. Cambridge University Press:1985. Pp.293. Hbk 25, 44.50; pbk 8.95, 14.95. A SHORT text on the molecular biology of development must be a masterpiece of selection. Ideally, such a work would ...
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 341 (1989), S. 282-283 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A STRIKING feature of Drosophila embryogenesis is the early appearance along the antero-posterior (A-P) axis of a precisely repeating pattern, the stripes of expression of the pair-rule genes12 (see figure). This pattern depends upon the earlier expression of the segment gap genes, but these do not ...
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 319 (1986), S. 447-448 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE control of development operates at many different levels. In recent months this has become easy to forget, with the nucleus the focus of attention and the DNA-binding properties of the homoeo box taking much of the limelight. Now the sequencing of two other 'controlling' genes, one from insects ...
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 338 (1989), S. 646-648 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The hunchback gene is the zygotic gap gene required for the formation of segments in the head and anterior thorax13. Localized transcription of hb in the anterior half of the embryo is induced at late cleavage stages by a gradient of bed protein14'15, and the resulting zygotically derived hb ...
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 327 (1987), S. 184-185 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the fruitfly Drosophila, the homoeotic genes of the Antennapedia and bithorax gene complexes (ANT-C and BX-C) specify the diversity of the different body segments'2. By studying the homologues of this gene family in other invertebrates, we can hope to relate major features of morphological ...
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 362 (1993), S. 509-510 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN walking across the upland fells of Britain, it is not uncommon to find the whitened jawbone of a long-dead sheep, teeth rattling in its sockets. Food for thought on a wet day, for both the developmental and evolutionary biologist. What mechanisms built the jaw's distinctive pattern, each tooth ...
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