نتایج جستجو برای: karyotypic variation
تعداد نتایج: 297875 فیلتر نتایج به سال:
Cytogenetic studies were carried out on samples of Parapteronotus hasemani, Sternarchogiton preto and Sternarchorhamphus muelleri (Apteronotidae, Gymnotiformes) from the Amazon basin. The first two species exhibited both a 2n = 52 karyotype, but differed in their karyotypic formulae, distribution of constitutive heterochromatin, and chromosomal location of the NOR. The third species, Sternarcho...
More than 500 colorectal tumors with clonal chromosomal abnormalities have been reported. Although the pattern of aberrations is nonrandom, no specific primary or secondary karyotypic abnormality has been identified. Also, the chronological order in which the aberrations appear during disease progression is not well known. One reason why our understanding of the cytogenetic evolution is unclear...
Introduction B cell chronic lymphocytic leukaemia (B-CLL) is the commonest type of adult leukaemia in the western world, accounting for over 40% of all adult patients with leukaemia.' About 50% of patients present with early stage, often asymptomatic disease. The disease may remain stable or slowly progress but at least half of all patients die of a cause unrelated to CLL. Age, sex, Binet stage...
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