Heterozygosis
Mostrando 25-36 de 41 artigos, teses e dissertações.
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25. Extinction of canid populations by inbreeding depression under stochastic environments in Southwestern Goiás State: a simulation study
A frequently addressed question in conservation biology is what is the chance of survival for a population for a given number of years under certain conditions of habitat loss and human activities. This can be estimated through an integrated analysis of genetic, demographic and landscape processes, which allows the prediction of more realistic and precise mo
Genetics and Molecular Biology. Publicado em: 2007
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26. Genetic evaluation of beef cattle composite / Avaliação genética de bovinos de corte compostos
Genetic groups were used to estimate the heterosis and its profile along generations in the population of Tropical Montana composite. The genetic groups evaluated were: pure breed animals, F1, other crossbreds and Tropical Montana composites. It was used a pedigree data to calculate each animal generation. The data were adjusted for the effects of total mate
Publicado em: 2007
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27. COMPOSIÇÃO CORPORAL, PERFIL METABÓLICO E INFLAMATÓRIO NA HETEROZIGOSE PARA UMA MUTAÇÃO NO GENE DO RECEPTOR DO GHRH
Diferentes formas de Deficiência Isolada do Hormônio do Crescimento (DIGH) são de herança autossômica recessiva. A mais comum (tipo IB) é freqüentemente causada por mutações bi-alélicas no gene do receptor de GHRH (GHRHR). Embora portadores heterozigotos da mutação do gene do GHRHR pareçam normais, o tamanho pequeno da maior parte das famílias
Publicado em: 2007
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28. Mutation screening in the VHL, SDHB and SDHD genes in patients with sporadic pheochromocytoma and/or paraganglioma / Rastreamento de mutações nos genes VHL, SDHB e SDHD em pacientes portadores de feocromocitoma ou também, paraganglioma esporádico
Pheochromocytomas are neuroendocrine tumors composed of chromaffin cells that produce and secrete catecholamines as well as a variety of neuropeptides, whose most common clinical manifestation is arterial hypertension. Twelve to 24% of the apparently sporadic pheochromocytomas, present germline mutations in genes previously associated to inherited familiar s
Publicado em: 2007
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29. Estimation of additive direct and maternal genetic and non additive effects and prediction of the performance of weights, scrotal circumference and muscling scores in a Bos taurus x Bos indicus, composite beef cattle population. / Estimação de efeitos genéticos aditivos diretos e maternos e não aditivos e, predição do desempenho de pesos, perímetro escrotal e musculosidade em uma população de bovinos de corte compostos (Bos taurus x Bos indicus)
Data of weights at birth, weaning, 390 days, weight gain from weaning to 390 days, scrotal circumference and muscling scores at 390 days of age of a population used in the formation of the Montana Tropical® beef composite, raised under tropical conditions, were analyzed under three different models to: i) determine genetic and environment effects ii) determ
Publicado em: 2005
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30. Rastreamento de mutações nos genes PITX2, FOXC1 e GJA1 em pacientes com sindrome de Axenfeld-Rieger associada a glaucoma
Axenfeld-Rieger Syndrome (ARS) is arare disorder, usually transmitted in an autosomal dominant pattem characterized by anterior segment dysgenesis and often associated with developmental glaucoma. In addition to the ocular changes observed in ARS, syndromic features can also occur, such as facial bone defects, teeth anomalies and peri-umbilical skin involuti
Publicado em: 2005
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31. Thalassemia intermedia as a result of heterozygosis for ß0-thalassemia and aaaanti-3.7/aa genotype in a Brazilian patient
We report a case in which the interaction of heterozygosis for both the ß0-IVS-II-1 (G->A) mutation and the aaaanti-3.7 allele was the probable cause for the clinical occurrence of thalassemia intermedia. The propositus, a 6-year-old Caucasian Brazilian boy of Portuguese descent, showed a moderately severe chronic anemia in spite of
Brazilian Journal of Medical and Biological Research. Publicado em: 2003-06
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32. Aplicação da pinça optica para o estudo da deformabilidade das hemacias
The deformability of erythrocytes is a critical determinant of blood flow in microcirculation. By capturing red blood cells with optical tweezers and dragging them through a viscous fluid we were able to measure their overall elasticity. Laser optical tweezers, based on photon momentum transfer, have been used successfully in a variety of biological applicat
Publicado em: 2003
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33. Inbreeding and building up small populations of stingless bees (Hymenoptera, Apidae)
A study of the viability of small populations of Hymenoptera is a matter of importance to gain a better zoological, ethological, genetical and ecological knowledge of these insects, and for conservation purposes, mainly because of the consequences to the survival of colonies of many species of bees, wasps, and ants. Based on the Whiting (1943) principle, Ker
Revista Brasileira de Zoologia. Publicado em: 2002-12
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34. Chromosome structure in phage T4, II. Terminal redundancy and heterozygosis.
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35. Recombination in Phage T2: Its Relationship to Heterozygosis and Growth
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36. Effects of Egg Size and Heterozygosis on Embryonic Growth and Hatching Speed