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For most organisms, chromosome segregation during meiosis relies on deliberate induction of DNA double-strand breaks (DSBs) and repair of a subset of these DSBs as inter-homolog crossovers (COs). However, timing and levels of DSB formation must be tightly controlled to avoid jeopardizing genome integrity. Here we identify the DSB-2 protein, which is(More)
The first example of a deletion of one of the two gamma globin genes has been characterized through an analysis of the DNA of the heterozygous parent of a homozygous newborn, using restriction endonuclease mapping techniques. A deletion of approximately 5 kb was observed which was probably caused by an unequal crossing-over between the -G gamma- and -A(More)
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