Results 171 to 180 of about 2,418 (204)
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Molecular evolution of the family Camelidae: a mitochondrial DNA study
Proceedings of the Royal Society of London Series B, Biological Sciences, 1994We report the first molecular evolutionary analysis of the family Camelidae by analysing the full DNA sequence of the mitochondrial cytochrome b gene. Estimates for the time of divergence of the Old World (Camelini) and New World (Lamini) tribes obtained from sequence data are in agreement with those derived from the fossil record.
Jane C Wheeler
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Comparative hematology—Studies on camelidae
Comparative Biochemistry and Physiology Part A: Physiology, 1976Abstract 1. 1. Blood samples from 2 camels, 1 guanaco and 1 llama were studied. All samples clotted; clots retracted and did not lyse. Prothrombin and partial thromboplastin times were faster than human. Plasma “thromboplastin” was effectively generated. Coagulation factor assays fell in the high to high-normal ranges as compared to human. 2.
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Functional heavy-chain antibodies in camelidae
2001Publisher Summary This chapter focuses on the steps that are involved in the ontogeny of a heavy-chain antibody (HCAb), starting from distinct genes. HCAb is defined as an immunoglobulin devoid of light (L) chains. The presence of HCAbs in human serum is reported as a pathological disorder. It seems that, besides the absence of L chain, the heavy (H)
Nguyen, Viet Khong +2 more
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The arteries on the base of the brain in the camelids (Camelidae)
Italian Journal of Zoology, 2014AbstractThe aim of this study was to analyse and compare the cerebral arterial circle, its anastomoses, its branches and the manner of blood supply in 20 individuals of the Camelidae family. The Camelidae family was represented by Camelus bactrianus (n = 8), Camelus dromedarius (n = 2), Lama guanicoe (n = 5) and Lama glama (n = 5).
A. Kiełtyka-Kurc +5 more
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Animal Genetic Resources Information, 1994
RESUMENEl autor describe la situación actual de los camélidos en América del Sur, aportando información sobre la geografia, distribución y número de las tres especies existentes: llama, alpaca y vicuña. Vienen presentados igualmente datos estadísticos importantes sobre las razas y sus sistemas de producción. Algunas indicaciones también sobre la escasa,
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RESUMENEl autor describe la situación actual de los camélidos en América del Sur, aportando información sobre la geografia, distribución y número de las tres especies existentes: llama, alpaca y vicuña. Vienen presentados igualmente datos estadísticos importantes sobre las razas y sus sistemas de producción. Algunas indicaciones también sobre la escasa,
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Heavy-chain antibodies in Camelidae ; a case of evolutionary innovation
Immunogenetics, 2002The emergence in Camelidae species of functional antibodies devoid of light chains (referred to as heavy-chain antibodies or HCAbs) is an intriguing evolutionary event. Homodimeric HCAbs have also been documented in spotted ratfish ( Cos5-Abs) and nurse shark (NAR).
Nguyen, Viet Khong +3 more
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1990
Abstract Camels and llamas, which originated in the New World, form part of the artiodactyl suborder Tylopoda The composition of the Tylopoda has been debated (Romer 1966; Webb and Taylor 1980) but the family Camelidae is evidently most closely related to the Oromerycidae (Gentry and Hooker 1988).
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Abstract Camels and llamas, which originated in the New World, form part of the artiodactyl suborder Tylopoda The composition of the Tylopoda has been debated (Romer 1966; Webb and Taylor 1980) but the family Camelidae is evidently most closely related to the Oromerycidae (Gentry and Hooker 1988).
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Emergence and evolution of functional heavy-chain antibodies in Camelidae
Developmental & Comparative Immunology, 2003Antibodies of jawed-vertebrates are composed of paired heavy (H) and light (L) polypeptide chains. Surprisingly, the sera of camelids, nurse shark and wobbegong shark, and possibly ratfish contain antibodies that lack L-chains. In camelids, these Heavy-chain antibodies (HCAbs) are gamma-isotypes, and are functional in antigen binding. In this review we
Conrath, Katja +3 more
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