منابع مشابه
Sds22 and Repo-Man keep anaphase chromosomes moving
W urzenberger et al. identify two phosphatase-targeting proteins that help chromosomes to segregate properly during anaphase. In early mitosis, the kinase Aurora B localizes to centromeres, where it eliminates incorrect attachments to the mitotic spindle by phosphorylating microtubule-binding kinetochore proteins like Dsn1. When sister chroma-tids are attached to opposite spindle poles, tension...
متن کاملthe tragedy of modern man in arthur millers world
what miller wants is a theatre of heightened consciousness. he speaks of two passions in a man, the passion to "feel" and the passion "know". he belives that we can have more of the latter. he says: drama is akin to the other inventions of man in that it ought to help us know more and not merely to spend our feelings. the writing of the crucible shows us that he is trying to give more heightene...
15 صفحه اولTelomere-independent homologue pairing and checkpoint escape of accessory ring chromosomes in male mouse meiosis
We analyzed transmission of a ring minichromosome (MC) through mouse spermatogenesis as a monosome and in the presence of a homologue. Mice, either monosomic or disomic for the MC, produced MC+ offspring. In the monosomic condition, most univalents underwent self-synapsis as indicated by STAG3, SCP3, and SCP1 deposition. Fluorescent in situ hybridization and three-dimensional fluorescence micro...
متن کاملa rare de novo complex chromosomal rearrangement (ccr) involving four chromosomes in an oligo-asthenosperm infertile man
complex chromosomal rearrangements (ccrs) are rare events involving more than two chromosomes and over two breakpoints. they are usually associated with infertility or sub fertility in male carriers. here we report a novel case of a ccr in a 30-year-old oligoasthenosperm man with a history of varicocelectomy, normal testes size and normal endocrinology profile referred for chromosome analysis t...
متن کاملOrigins of accessory small ring marker chromosomes derived from chromosome 1.
Three patients with accessory small ring chromosomes derived from chromosome 1 are presented together with additional clinical details and cytogenetic analyses of a previously reported patient. Cytogenetic analysis was undertaken by FISH using a reverse painting probe generated from one of the patients by microdissection of the r(1) chromosome and with a BAC923C6 which maps to 1p12. Results ind...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1910
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1536174