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P transposable elements of Drosophila melanogaster cloned from the strong P strain pi 2 have been analysed. The structures and chromosomal locations of 26 of the 30-50 elements estimated to be present in pi 2 have been determined. At one location two elements are inserted 100 base pairs (bp) apart, and in a second location two elements are only separated by(More)
We analysed the structure of the white locus of Drosophila melanogaster in a family of related white mutants. The white-one mutant has bleach white eyes, and a Doc transposable element is inserted into the promoter region of the white locus. The DNA sequence of this Doc insertion was determined, and showed it to be closely related to other Drosophila(More)
DNA sequences from two spontaneous mutations of Drosophila melanogaster associated with insertion of a Doc transposable element have been cloned. In white-one, the element is inserted in the white locus close to where transcription initiates. In a lethal allele of suppressor of forked, su(f) S2 , the element is inserted within the transcription unit in the(More)
The aim of this study was to measure the crestal bone level changes at 60 months of follow-up and to evaluate the influence of biologically relevant, anatomical, and implant-related variables. A prospective study design was used. STROBE guidelines were followed. A total of 576 implants were inserted in 270 patients needing an implant-supported, partial,(More)
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