Maternal Offspring Relation
Mostrando 13-18 de 18 artigos, teses e dissertações.
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13. Using Cases and Parents to Study Multiplicative Gene-by-Environment Interaction
With case-parent triads, one can estimate genotype relative risks by measuring the apparent overtransmission of susceptibility genotypes from parents to affected offspring. Results obtained using such designs, properly analyzed, resist both bias due to population structure and bias due to self-selection. Most diseases are not purely genetic, and environmenta
Oxford University Press.
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14. Reconsidering the null hypothesis: Is maternal rank associated with birth sex ratios in primate groups?
Trivers and Willard hypothesized that vertebrates adaptively vary the sex ratio of their offspring in response to the mother's physical condition [Trivers, R. L. & Willard, D. (1973) Science 179, 90–92]. This hypothesis has produced considerable debate within evolutionary biology. Here we use meta-analysis techniques to evaluate claims that nonhuman primat
National Academy of Sciences.
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15. Incidence of Schizophrenia Among Second-Generation Immigrants in the Jerusalem Perinatal Cohort
Objective: Increased incidence of schizophrenia is observed among some immigrant groups in Europe, with the offspring of immigrants, ie “second-generation” immigrants particularly vulnerable. Few contemporary studies have evaluated the risk of schizophrenia among second-generation immigrants in other parts of the world. Methods: We studied the incidence
Oxford University Press.
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16. Sex ratio adjustment in relation to paternal attractiveness in a wild bird population.
When the relative fitness of sons and daughters differs, sex-allocation theory predicts that it would be adaptive for individuals to adjust their investment in different sexes of offspring. Sex ratio adjustment by females in response to the sexual attractiveness of their mate would be an example of this. In vertebrates the existence of this form of sex ratio
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17. Congenital malformations and maternal occupation: a registry based case-control study.
OBJECTIVES: To investigate the relations between congenital malformations and maternal occupation during pregnancy with a registry based case-control study. METHODS: Analysis was performed on data derived from the Florence Eurocat registry surveillance programme. The study included cases with isolated conditions, including chromosomal anomalies (n = 1351), c
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18. Structure and inheritance of some heterozygous Robertsonian translocation in man.
Banding studies in 25 Robertsonian translocations showed that all could be interpreted as stable dicentrics. The mechanism for their stability is likely to be the proximity of their centromeres but centromeric suppression could also have a role. In many of these dicentric translocations, discontinuous centromeric suppression, as indicated by chromatid separa