(1) Multivariate expected correlations for three models of familial resemblance are derived, with particular attention given to the modeling of assortative mating: nuclear families with a phenotypic homogamy model of assortative mating, nuclear families with a social homogamy model of assortative mating, and twins and their parents with phenotypic homogamy.
(2) Consistent with other research, the results point to homogamy as a basic norm in marriage.
(3) Sibling-spouse analyses suggested that assortment for such language use is entirely due to social homogamy rather than active phenotypic assortment.
(4) The authors conclude that familial aggregation of systolic pressure reflects additive genetic variance mediated, in part, by body size and augmented by social homogamy arising from non-random mating.
(5) The proposed path model incorporates both genetic and environmental sources of familial resemblance, maternal environmental effects, intergenerational differences in heritabilities, marital resemblance due to either primary or secondary phenotypic homogamy, and twin residual environmental correlations.
(6) The concept of physiognomic homogamy between parents and children was tested using 39 photo sets consisting of two sets of parents and one child.
(7) In this short note we describe one simple model of resemblance among twins and their parents which can be accommodated in the LISREL specification due to the strong assumption of social homogamy.
(8) Hypotheses based on common marital environment, homogamy or simultaneous accidental death are seen to be of very limited value.
(9) Initially the twins were analyzed independent of each other, and the results showed fairly clear homogamy among female MZ twins and their spouses, after correcting for age.
(10) The sociocultural dislocations resulting from the migration experience from Puerto Rico to New York City do not impede the restitution of marital homogamy in the host society with respect to either general or culture specific variables.
(11) The variables used to examine intergenerational processes and to assess homogamy are age, education, and the degree of acceptance of two Puerto Rican cultural values--familism and fatalism.
(12) There is no social homogamy effect via grandparents.
Inbreeding
Definition:
(p. pr. & vb. n.) of Inbreed
Example Sentences:
(1) Regressional analysis of relations between loads and the level of inbreeding in the Adyg population showed the explicit interrelation between the load of autosomal-dominant diseases and the Fst correlation coefficient being 0.89.
(2) Dogs with mammary adenocarcinoma and mixed mammary cancer had similar degrees of inbreeding.
(3) Although many studies report deleterious effects of inbreeding on prereproductive mortality (death before age 20 years), such effects are usually measured in terms of genetic load, a concept much debated in the literature.
(4) This paper presents a FORTRAN IV subroutine to calculate inbreeding and kinship coefficients from pedigree information in a diploid population without self-fertilization.
(5) Experimental increase in the fraction of tolerant response was obtained by decreasing the virus dose or by phenotypic inbreeding of rodents.
(6) Fitness measures appeared linearly related to the inbreeding coefficient of the liters, with no diminution of deleterious effects through subsequent generations of inbreeding.
(7) He postulates that this greater antimeric variance could be due to a greater degree of inbreeding in the Neandertal populations.
(8) However, in the Frankfurt line at least, one of the presumed alleles is likely to be lost due to inbreeding.
(9) The increase in inter se relationship without corresponding increase in inbreeding indicates that a change in mating strategies has evolved over time.
(10) The calculated values of gamete and endogamy indices were indicative of intensive migration processes, weak isolation by distance, and minimal inbreeding.
(11) Inbreeding coefficient was estimated for Adyg population and its structure analysed: a random component contributes mostly to the inbreeding coefficient (Fst = 0.00991), non-random component of the inbreeding coefficient being Fis = 0.010009, which testifies to negative marital assortativity among Adygs.
(12) Inbreeding depression was not enough to cause large reductions of milk and fat yield of a cow with average inbreeding.
(13) The rise in inbreeding levels in the Amish over time can be uniquely contrasted with the decline in inbreeding in most areas of the world.
(14) The present inbreeding in Norway is low (alpha4 = 0-000242), approximately one-eighth of the estimated level according to the 1891 census.
(15) This is supported by the dependence established between the frequency of the cases of oligophrenia among female persons and the inbreeding coefficient for the X-linked loci.
(16) The significance of such selection models is discussed for the retention of variability in inbreeding populations with a minimum of segregational load and higher overall stability in contrast to the overdominance models.
(17) Although the finding of a preference for siblings in estrous females is counter to expectations from an inbreeding avoidance approach, this is one of a variety of findings to suggest that not all animals avoid inbreeding all of the time.
(18) Suppression of reproduction in female offspring while they remain with the extended family unit is discussed as a life-history tactic and as a possible mechanism for inbreeding avoidance.
(19) Therefore the isonymy analysis gives a misestimation of the inbreeding coefficient, depending on the prevailing form of nonrandomness.
(20) Skin grafts were exchanged between siblings from 16 inbreeding lines of rabbits.