Results 91 to 100 of about 499,830 (212)

The effect of genes on A and B chromosomes of a number of Triticinae on meiotic behaviour in Triticum aestivum and its hybrids with related species [PDF]

, 1979
Results obtained and hypotheses that have been put forward to integrate them, are summarized in this section.1. Studies of chromosome association in F 1 hybrids Triticum aestivum X Secale cereale with and without chromosome 5B and in the presence or in ...
Viegas, W.S.
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Ring chromosomes, breakpoint clusters, and neocentromeres in sarcomas

, 2015
Gene amplification is relatively common in tumors. In certain subtypes of sarcoma, it often occurs in the form of ring and/or giant rod-shaped marker (RGM) chromosomes whose mitotic stability is frequently rescued by ectopic novel centromeres ...
MACCHIA, GEMMA, D'ADDABBO, PIETRO, Whelan, Christopher W., Gemma Macchia, Carbone, Lucia, Christopher W. Whelan, Mariano Rocchi, Perini, G, Nord, Kh, Stefania Purgato, Carbone, L, Mertens, Fredrik, Hansén Nord, Karolin, Monica Zoli, Fredrik Mertens, Purgato, S, Clelia Tiziana Storlazzi, Perini, Giovanni, ROCCHI, Mariano, Karolin H. Nord, Hansén Nord, Karolin,, Mertens, F, STORLAZZI, CLELIA TIZIANA, Whelan, Cw, Whelan, Christopher W, Mertens, Fredrik,, Purgato, Stefania, Nord, Karolin H., Zoli, M, Zoli, Monica, Pietro D'Addabbo, Giovanni Perini, Lucia Carbone, Lund University.   +33 more
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Chromosomal characterization of Hyla bischoffi and Hyla guentheri (Anura, Hylidae)

Phyllomedusa: Journal of Herpetology, 2004
Hyla bischoffi and H. guentheri share some morphological and call characters with the H. pulchella and H. polytaenia groups. The inclusion of these two species in one of these two groups is still controversial. This study showed that both species have 2n
Simone C. Raber, Klélia A. Carvalho, Paulo C. A. Garcia, Giovanni Vinciprova, Shirlei M. Recco-Pimentel   +4 more
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The Evolution of Mammalian X Chromosomes and X Chromosome Inactivation

, 2015
For many years it was thought that the X chromosome in all three major lineages of mammals (monotremes, marsupials and eutherians) had a shared evolutionary history.
Rodriguez Delgado, Claudia, Deakin, Janine   +1 more
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Evidence for a single-step mechanism in the origin of hyperdiploid childhood acute lymphoblastic leukemia.

, 2005
High hyperdiploidy (>50 chromosomes) in childhood acute lymphoblastic leukemia (ALL) is characterized by nonrandom multiple trisomies and tetrasomies involving in particular chromosomes X, 4, 6, 8, 10, 14, 17, 18, and 21.
Johansson, Bertil, Paulsson, K.,, Mörse, Helena, Fioretos, Thoas, Paulsson, Kajsa, Fioretos, T.,, Strömbeck, Bodil, Strombeck, B.,, Behrendtz, Mikael, Morse, H.,, Behrendtz, Mikael,, Johansson, B.,, Paulsson, Kajsa,, Johansson, Bertil,, Mörse, Helena,, Strömbeck, Bodil,, Lund University., Fioretos, Thoas,   +17 more
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Condiciones óptimas de cultivo de linfocitos y análisis parcial del cariotipo de la tortuga cabezona, Caretta caretta (Testudines: Cheloniidae) en Santa Marta, Caribe Colombiano

Revista de Biología Tropical, 2008
En los últimos años se ha registrado una disminución importante en el número de individuos de la tortuga marina Caretta caretta anidantes en el Caribe colombiano, situación que pone en evidencia la posibilidad de su extinción a mediano plazo.
Ellie Ann López, Javier Hernández-Fernández, Jaime Bernal-Villegas   +2 more
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Specific loss of chromosomes 1, 2, 6, 10, 13, 17, and 21 in chromophobe renal cell carcinomas revealed by comparative genomic hybridization [PDF]

, 1994
We analyzed 19 chromophobe renal cell carcinomas by means of comparative genomic hybridization. Two tumors revealed no numerical abnormalities. In the remaining 17 cases we found loss of entire chromosomes with underrepresentation of chromosome 1 ...
Speicher, Michael R., Cremer, Thomas, Kovacs, Gyula, Störkel, S., Ried, Thomas, Schoell, B., Manoir, Stanislas du, Schröck, Evelin   +7 more
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Evolución de los filotinos (Rodentia, Muridae) en los Andes del Sur Evolution of phyllotines (Rodentia, Muridae) in the southern Andes

Revista Chilena de Historia Natural, 2001
La tribu Phyllotini es un grupo avanzado de 46 especies endémicas entre los Muridae de América del Sur que, estando adaptado a sus ambientes xéricos, parece haber tenido el Altiplano Sur como área de diferenciación original (Reig 1986). Esta hipótesis es
ANGEL E SPOTORNO, LAURA I WALKER, SERGIO V FLORES, MARCO YEVENES, JUAN C MARÍN, CARLOS ZULETA   +5 more
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Mechanical Forces, Nucleus, Chromosomes, and Chromatin

Biomolecules
Individual cells and cells within the tissues and organs constantly face mechanical challenges, such as tension, compression, strain, shear stress, and the rigidity of cellular and extracellular surroundings. Besides the external mechanical forces, cells
Malgorzata Kloc, Jarek Wosik
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Identidad de la rana austral chilena Eupsophus coppingeri (Amphibia, Anura, Neobatrachia): evidencias morfológicas, cromosómicas y moleculares Identity of the austral Chilean frog Eupsophus coppingeri (Amphibia, Anura, Neobatrachia): morphological, chromosomic and molecular evidences

Revista Chilena de Historia Natural, 2008
Análisis comparativos que incluyen: morfología externa de adultos y larvas, osteología, cromosomas y secuencias del gen mitocondrial citocromo b muestran que la rana austral chilena Eupsophus coppingeri (Günther 1881) es una especie del género Alsodes ...
J. RAMÓN FORMAS, JOSÉ NÚÑEZ, CÉSAR CUEVAS   +2 more
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