Results 291 to 300 of about 3,010,874 (320)

The karyotype evolution in chronic granulocytic leukaemia—II. The chromosome and karyotype pattern of advanced evolution

European Journal of Cancer (1965), 1973
Abstract The trends of karyotype evolution were investigated in a material consisting of 3633 karyotyped Ph1-positive metaphases obtained from 48 patients with chronic granulocytic leukaemia. In agreement with observations by others, the majority of the chromosomes gained during progressive evolution were observed to be Ph1, F and, in particular, C ...
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[Karyotype evolution of suborder (Ruminantia)].

Tsitologiia, 2013
Suborder Ruminantia is the largest taxa in order Cetartiodactyla and includes species with great differences in morphology and diploid numbers of chromosomes. To date, the main chromosome changes that formed karyotypes of modern species of this suborder have been described by comparative chromosome painting.
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Ongoing chromosomal instability and karyotype evolution in human colorectal cancer organoids

Nature Genetics, 2019
Ana C. F. Bolhaqueiro, B. Ponsioen, B. Bakker, S. Klaasen, Emre Kucukkose, R. V. van Jaarsveld, J. Vivié, Ingrid Verlaan-Klink, N. Hami, D. Spierings, Nobuo Sasaki, Devanjali Dutta, S. Boj, R. Vries, P. Lansdorp, M. van de Wetering, A. van Oudenaarden, H. Clevers, O. Kranenburg, F. Foijer, H. Snippert, G. Kops   +21 more
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Karyotype and Genome Evolution in Pteridophytes

2012
Although genomics is a field often discussed as a recent development brought upon by the advent of next-generation sequencing technologies, the roots of genomics extend to at least the early twentieth century. Rather than running a gel or assembling sequence reads on a server, early cytologists squashed and stained actively dividing cells and viewed ...
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Karyotypes and Species Evolution and Divergence

1993
In simplistic terms, karyotype may be defined as the morphology of the chromosomes. The karyotype is generally studied at somatic metaphase in root tips (sometimes in shoot tips), pollen mitosis, or at pachytene of meiosis. Chromosome number, total chromosome lengths, arm ratios, secondary constrictions, and satellites constitute important parameters ...
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Karyotype evolution and tumor development

Cancer Genetics and Cytogenetics, 1983
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Evolution des Genoms und des Karyotyps

1991
Die Frage, auf welchem Wege ein Genom gerade so geworden ist, wie wir es derzeit vorfinden, last sich in manchen Fallen aus der Analyse der Genome stammesgeschichtlich verwandter Arten rekonstruieren. Die Frage, warum es so geworden ist, bleibt im Einzelfall meist unbeantwortet, da in der Evolution ungerichtete Mutationsereignisse mit Zufallsprozessen ...
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Karyotype Variation and Evolution in Gymnosperms

2012
The gymnosperms are the modern representatives of the most ancient group of seed-bearing plants. Their chromosomes have been studied extensively and chromosome numbers are known for representatives of all but three genera. A unique feature of the gymnosperms is the relative uniformity of their chromosome numbers both between species within genera and ...
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A novel indicator of karyotype evolution in the tribe Leucocoryneae (Allioideae, Amaryllidaceae)

Journal of plant research, 2017
A. Sassone, A. López, D. Hojsgaard, L. Giussani   +3 more
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Karyotypic evolution of human meningioma

Cancer Genetics and Cytogenetics, 1989
Cacilda Casartelli, Silvia Regina Rogatto, JoséBarbieri Neto   +2 more
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