منابع مشابه
Body size and intelligence in hominoid evolution
Great apes and humans are the largest-brained primates. Aside from a few extinct subfossil lemurs, they are also the largest in body mass. Body size is a key aspect of a species’ biology, a large organism having different energetic, ecological, and physical constraints than a small one. Brain size, in so far as it determines abilities to acquire, process, and act on information, is also a key a...
متن کاملXenopus Cytogenetics and Chromosomal Evolution.
The genus Xenopus represents important model organisms in the field of developmental biology and chromosomal evolution. Developmental processes are tightly coupled with the analysis of gene function via genetic linkage and mapping. Cytogenetic techniques such as chromosome banding or FISH are essential tools for the determination of gene position and subsequently for the construction of linkage...
متن کاملUric acid, hominoid evolution, and the pathogenesis of salt-sensitivity.
Humans have elevated serum uric acid as a result of a mutation in the urate oxidase (uricase) gene that occurred during the Miocene. We hypothesize that the mutation provided a survival advantage because of the ability of hyperuricemia to maintain blood pressure under low-salt dietary conditions, such as prevailed during that period. Mild hyperuricemia in rats acutely increases blood pressure b...
متن کاملComparative Molecular Cytogenetics and Chromosome Evolution
ABC Fax + 41 61 306 12 34 E-mail [email protected] www.karger.com © 2005 S. Karger AG, Basel 0301–0171/05/1083–0139$22.00/0 Accessible online at: www.karger.com/cgr Abstract. For the last 15 years molecular cytogenetic techniques have been extensively used to study primate evolution. Molecular probes were helpful to distinguish mammalian chromosomes and chromosome segments on the basis of their ...
متن کاملComparative Molecular Cytogenetics and Chromosome Evolution
ABC Fax + 41 61 306 12 34 E-mail [email protected] www.karger.com © 2005 S. Karger AG, Basel 0301–0171/05/1083–0191$22.00/0 Accessible online at: www.karger.com/cgr Abstract. We report on the cytogenetics of twin offspring from an interspecies cross in marmosets (Callitrichinae, Platyrrhini), resulting from a pairing between a female Common marmoset (Callithrix jacchus, 2n = 46) and a male Pygmy...
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ژورنال
عنوان ژورنال: American Journal of Physical Anthropology
سال: 1983
ISSN: 0002-9483
DOI: 10.1002/ajpa.1330260507