Results 41 to 50 of about 145,057 (324)

Diurnal preference and sleep quality: same genes? A study of young adult twins [PDF]

open access: yes, 2010
The aims of this study were to examine the genetic and environmental influences on diurnal preference and sleep quality, the association between these phenotypes, the genetic and environmental influences on this association, and the magnitude of overlap ...
Nicola L. Barclay   +39 more
core   +1 more source

A double dominant genetic mechanism for schizophrenia [PDF]

open access: yesHereditas, 2009
Family data from Iceland are reported, showing the rates of hospitalization with psychosis in different classes of relatives of index cases diagnosed schizophrenic, manic depressive, or psychotic depressive. The data are analyzed in terms of the probable mode of transmission for schizophrenia and are felt to fit best a mechanism requiring two separate ...
openaire   +2 more sources

Genetic determinism in the Finnish upper secondary school biology textbooks

open access: yesNordina: Nordic Studies in Science Education, 2015
Genetics is a fast-developing field and it has been argued that genetics education is lagging behind. Genetics education has, for example, been suspected of indoctrinating strong genetic determinism. As the updating of the national upper secondary school
Tuomas Aivelo, Anna Uitto
doaj   +1 more source

Error threshold in the evolution of diploid organisms

open access: yes, 1996
The effects of error propagation in the reproduction of diploid organisms are studied within the populational genetics framework of the quasispecies model. The dependence of the error threshold on the dominance parameter is fully investigated.
D Alves   +9 more
core   +1 more source

Effect of migration in a diffusion model for template coexistence in protocells [PDF]

open access: yes, 2014
The compartmentalization of distinct templates in protocells and the exchange of templates between them (migration) are key elements of a modern scenario for prebiotic evolution.
Fontanari, Jose F., Serva, Maurizio
core   +2 more sources

Quantitative genetics theory for genomic selection and efficiency of genotypic value prediction in open-pollinated populations

open access: yesScientia Agricola
: Quantitative genetics theory for genomic selection has mainly focused on additive effects. This study presents quantitative genetics theory applied to genomic selection aiming to prove that prediction of genotypic value based on thousands of single ...
José Marcelo Soriano Viana   +2 more
doaj   +1 more source

Genetic analysis of some agronomic traits in groundnut (Arachis hypogaea L.)

open access: yesInternational Journal of Agricultural Research, Innovation and Technology, 2013
A 10×10 half diallel experiment was conducted on groundnut (Arachis hypogaea L.) to ascertain the gene action and genetic parameters of ten traits including 50% flowering, no. of pods per plant, plant height, harvest index, pod index, 100 pod weight, 100
M.K. Alam
doaj   +1 more source

Detecting selection-induced departures from Hardy-Weinberg proportions

open access: yesGenetics Selection Evolution, 2009
Viability selection influences the genotypic contexts of alleles and leads to quantifiable departures from Hardy-Weinberg proportions. One measure of these departures is Wright's inbreeding coefficient (F), where observed heterozygosity is compared with ...
Lachance Joseph
doaj   +1 more source

Assessment of the dynamics of microparasite infections in genetically homogeneous and heterogeneous populations using a stochastic epidemic model [PDF]

open access: yes, 2008
The aim of this paper was to explore the effect of genetic heterogeneity in host resistance to infection on the population-level risks and outcomes of epidemics.
Bishop, S. C.   +2 more
core   +1 more source

Dominant Takeover Regimes for Genetic Algorithms [PDF]

open access: yes, 1995
The genetic algorithm (GA) is a machine-based optimization routine which connects evolutionary learning to natural genetic laws [1–2]. The present work addresses the problem of obtaining the dominant takeover regimes in the GA dynamics. Estimated GA run times are computed for slow and fast convergence in the limits of high and low fitness ratios. Using
David Noever, Subbiah Baskaran
openaire   +1 more source

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