Zobrazeno 1 - 10
of 215
pro vyhledávání: '"R, Barrantes"'
Publikováno v:
Revista de biologia tropical. 49(3-4)
A study of several loci blood groups (ABO, Diego, Duffy, Kell, Kidd, Lewis, Lutheran, MNSs, P, Rhesus and Secretor), and Hp serum protein was carried out on a sample of 2,196 unrelated Costa Rican individuals of both sexes. Data was classified and an
Publikováno v:
Human biology. 68(6)
We evaluate the pattern of genetic variation among native Mesoamerican Amerindians by the construction of a gene frequency map that reflects the past action of evolutionary forces. The analysis is based on the theory that genes of modern human popula
Autor:
M, Santos, R, Barrantes
Publikováno v:
American journal of human genetics. 57(1)
Publikováno v:
Human biology. 66(6)
The genetic variation in a Chibcha-speaking Amerindian tribe from lower Central America, the Huetar, was analyzed using nucleotide sequences of the hypervariable segments of the mitochondrial DNA (mtDNA) control region, the frequencies of 10 Amerindi
Autor:
R, Barrantes
Publikováno v:
Revista de biologia tropical. 41(3A)
The genetic diversity of nine Amerindian tribes (Boruca, Bokota, Bribrí, Cabecar, Guatuso, Guaymí, Huetar, Kuna and Teribe) from Costa Rica and Panama were analyzed using 48 loci of enzymatic systems, blood groups and serum proteins. The average he
Publikováno v:
Revista medica de Panama. 17(3)
We have found, in this first genetic study of a supposedly admixed Panamanian population, that the cultural group known as "cholos of Coclé" constitute a trihybrid mixture, whose genetic pool has the following composition: 44% Amerindian, 38% Caucas
Publikováno v:
American journal of human genetics. 51(3)
Models are developed for the survival, history, and spread of variant alleles, in order to consider what can, and what cannot, be inferred from this type of data. The high variances of the processes involved, and questions of sampling, place severe l
Autor:
R, Barrantes
Publikováno v:
Revista de biologia tropical. 38(2A)
Diego blood group was studied in 141 Amerindian and Eskimo tribes from Alaska and Canada. Twenty six tribes (18%) did not show the Di-a antigen and 20 tribes (77%) were of the Chibcha linguistic Phyla. In the past, the Di-a absence has been related t
Autor:
R, Barrantes, P E, Smouse, H W, Mohrenweiser, H, Gershowitz, J, Azofeifa, T D, Arias, J V, Neel
Publikováno v:
American journal of human genetics. 46(1)
There is evidence that Amerindians have continuously occupied the lower Central American Isthmus for as long as 10,000 years. There remains some doubt about the relationships of these original colonizers to the resident peoples of this zone at the ti
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