Argues that Jamaican notions of 'race' and 'class' can be rendered as a discourse of heritable biological and environmental identity. There has been a movement in the meaning of colour categories from an emphasis on biology, to a greater emphasis on environment. This transition has been encouraged by the emergence of class as a 20th-c. idiom.
Diane J. Austin-Broos
Cock Van Oosterhout and Paul M. Brakefield
-offspring regression was used to estimate heritabilities (h2) of eight wing pattern characters plus five principal components of the butterfly Bicyclus anynana. The exper- iment consisted of six metapopulations with four subpopulations each with an effective subpopulation size Ne = 6 or 12, and additionally, one
Brian K. Via, Michael Stine, Todd F. Shupe, Chi-Leung So and Leslie Groom
Improvement of specific gravity through tree breeding was an early choice made in the mid 20th century due to its ease of measurement and impact on pulp yield and lumber strength and stiffness. This was often the first, and in many cases, the only wood quality trait selected for. However, from a product standpoint, increased specific gravity has shown to lower many paper strength and stiffness properties and has been assumed to be directly attributable to increased fiber coarseness. As a result, it is currently not clear which fiber trait would best benefit a tree improvement program for paper products. This review found coarseness to be perhaps more important to paper strength and stiffness whereas tracheid length showed better promise from a breeding point of view due to its independence from specific gravity. However, both traits possessed strong heritability and influence on product performance and thus both would be beneficial to breed for depending on organizational goals and end product mix. The objective of this paper is to review and prioritize coarseness and tracheid length from both an end use and raw material perspective. To aid in prioritization, the variation, correlation, and heritability of both traits were reviewed along with significant genetic and phenotypic correlations. Variation trends within and between families as well as within a tree were reviewed.
Eugene Kamenka and Alice Erh-Soon Tay
261 Marxism-Leninism and the Heritability of Law Alice Erh-Soon Tay Professor of Jurisprudence University of Sydney, Australia Eugene Kamenka Professor of the History of Ideas Australian National University, Canberra, Australia I The growing emphasis in Marxist-socialist countries on the
David J. Thompson
HERITABILITY FOR BODY SIZE IN THE ISOPOD ASELLUS AQUATICUS (L.) BY DAVID J. THOMPSON Department of Zoology, The University, P.O. Box 147, Liverpool L69 3BX, U.K. INTRODUCTION Ridley & Thompson (1979) showed that body size was intimately associated with reproductive success in Asellus aquaticus
280 A Little Discussion of the Heritability of Law * Lin Rongnian At the beginning of the 1950s, a fervent discussion developed in legal circles on whether law was or was not heritable; some said it was, some said it was not, and everybody put forward his own views. In this. some erroneous
275 Chinese Thoughts on the Heritability of Law: Translations Dr. Frank Munzel Research Associate, Max-Planck-Institut für ausländisches und internationales Privatrecht. Hamburg, BRD. Translates Introduction On the eve of the foundation of the PRC, a separate decree and art. 17 of the "Common
Alex Beharav, Moshe Pinthus J. and Avigdor Cahaner
Genetic expectations of total genetic variance, and between-family and within-family variance components were developed for any given generation (Fn) derived from single selfed plants of an earlier generation (Fk). A formula to estimate the heritability (h2) in any desired generation (Fn) was developed on the basis of these expectations. This formula estimates the value of the genetic variance from the phenotypic variance adjusted to the F2 generation. Heritability estimates of culm length, heading date, and mean grain weight from two populations of F6 families, each derived from a single F5 plant, were computed using this formula, and a formula which estimates the value of the genetic variance from the phenotypic variance in the Fn generation (“Fn estimates”). The FN h2 estimates at F6 were always higher than those adjusted to F2 variance, due to the increase in additive variance and the reduction in dominance variance.
Gardner, Schaeffer, Hopkins, Russell and Schapiro
Handedness for tool use in captive chimpanzees ( Pan troglodytes ): sex differences, performance, heritability and comparison to the wild W.D. Hopkins 1,2,4) , J.L. Russell 1) , J.A. Schaeffer 1) , M. Gardner 3) & S.J. Schapiro 3) ( 1 Division of Psychobiology, Yerkes National Primate Research
I. Aleksic and N. Tucic
. We estimated changes in the components of phenotypic variance and covariance among seven metric traits over the first 90 days of growth in the sharp-snouted rock lizard (Lacerta oxycephala). The broad-sense heritability estimated from the data representing mostly size components of the seven