a cytogenetical study on 13 alfalfa (medicago sativa) cultivars available in iranian forest and rangelands genebank was performed in order to obtain basic information on the variability in chiasma frequency/distribution, chromosome association and segregation. such cytogenetic information is useful for planning hybridization programs. cluster analysis of meiotic data and ordination of cultivars...

The Philadelphia chromosome translocation (t(9;22)) results in the molecular juxtaposition of two genes, BCR and ABL, to form an aberrant BCR-ABL gene on chromosome 22. BCR-ABL is critical to the pathogenesis of chronic myelogenous leukemia and a subset of acute leukemias. The chimeric Bcr-Abl protein has constitutively elevated tyrosine phosphokinase activity. This abnormal enzymatic activatio...

The EMBO 2010 Workshop on Chromosome Segregation and Aneuploidy, held between 19 and 23 June at Edinburgh University's Royal College of Surgeons, highlighted basic mitotic mechanisms, chromosome-based defects linked to human diseases and the processes that connect them.

Experimental pattern recognition techniques for processing chromosome slides with a computer are described. The purpose of the computer program is twofold: to illuminate the basic mechanisms by which a human recognizes an object, such as a chromosome, and distinguishes it from other entities; and the employment of these mechanisms is an automatic and precise extraction of chromosome features.

In this research the metaphase chromosome number and karyotype of Astragalus stenosemioides species growing naturally in Turkey are studied. The study revealed that A. is 2n = 16. basic determined as x 8. formula 8m. total length somatic chromosomes ranges between 1.96 - 3.38 μm. haploid 21.36 addition, asymmetry was evaluated by different methods; Stebbins classification, TF%, AsK%, Syi Rec, A...