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Direct linkMaier, Caroline Alexander – American Biology Teacher, 2004
The study describes the process of DNA-DNA hybridization and the history of its use by Sibley and Alquist in simple, straightforward, and interesting language that students easily understand to create their own phylogenetic tree of the hominoid superfamily. They calibrate the DNA clock and use it to estimate the divergence dates of the various…
Descriptors: Evolution, Primatology, Genetics, Biology
Safuanov, Ildar S. – International Journal of Mathematical Education in Science and Technology, 2005
In order to teach on the basis of the genetic approach, one should undertake an analysis consisting of the following two stages: (1) a genetic elaboration of the subject matter and (2) an analysis of the arrangement of the material, including a consideration of various ways of representing it and its effect on students. The genetic elaboration of…
Descriptors: Genetics, Mental Disorders, Mental Health, Counseling
Cooper, Richard S. – American Psychologist, 2005
During the last hundred years, the debate over the meaning of race has retained a highly consistent core, despite evolution of the technical details. Non-Europeans, and in particular, Africans, are assigned the role of deviants and outcasts, whose claim on our common humanity remains in doubt. Each time the technical facade of these racialist…
Descriptors: Genetics, Race, Intelligence Quotient, Molecular Biology
Lopes, O.; Barton, G.; Morgan, J. – Journal of Intellectual Disability Research, 2005
The clinical features of this rare chromosomal syndrome are described in two individuals. Our limited knowledge of the natural history of this disorder has made it difficult to counsel parents as well as outline specific treatment and management plans. Interviews were undertaken with subjects, carers and next of kin, and the literature was…
Descriptors: Clinical Diagnosis, Genetics, Interviews, Physical Disabilities
Mustapha, Y.; Muhammad, S. – Educational Research and Reviews, 2006
The assembly of proteins takes place in the cytoplasm of a cell. There are three main steps. In initiation, far left, all the necessary parts of the process are brought together by a small molecule called a ribosome. During elongation, amino acids, the building blocks of proteins, are joined to one another in a long chain. The sequence in which…
Descriptors: Genetics, Science Education, Cytology, Molecular Biology
Bandopadhyay, Rina; Kingsbury, Ann E.; Cookson, Mark R.; Reid, Andrew R.; Evans, Ian M.; Hope, Andrew D.; Pittman, Alan M.; Lashley, Tammaryn; Canet-Aviles, Rosa; Miller, David W.; McLendon, Chris; Strand, Catherine; Leonard, Andrew J.; Abou-Sleiman, Patrick M.; Healy, Daniel G.; Ariga, Hiroyashi; Wood, Nicholas W.; de Silva, Rohan; Revesz, Tamas; Hardy, John A.; Lees, Andrew J. – Brain, 2004
Two mutations in the DJ-1 gene on chromosome1p36 have been identified recently to cause early-onset, autosomal recessive Parkinson's disease. As no information is available regarding the distribution of DJ-1 protein in the human brain, in this study we used a monoclonal antibody for DJ-1 to map its distribution in frontal cortex and substantia…
Descriptors: Diseases, Brain, Neurology, Neurological Impairments
Hermann, Gilbert – American Biology Teacher, 2003
Molecular genetics is a rapidly changing field with new developments almost from day to day. One interesting hypothesis that has come from everyone's ability to sequence proteins and/or genes is that of the molecular clock. This hypothesis postulates that homologous sequences of DNA and thus macro molecules evolve at a constant and invariable rate…
Descriptors: Genetics, Evolution, Molecular Biology, Science Instruction
Nettle, Daniel – American Psychologist, 2006
A comprehensive evolutionary framework for understanding the maintenance of heritable behavioral variation in humans is yet to be developed. Some evolutionary psychologists have argued that heritable variation will not be found in important, fitness-relevant characteristics because of the winnowing effect of natural selection. This article…
Descriptors: Biodiversity, Personality, Evolution, Genetics
Greve, Werner; Ebner, Natalie C. – European Journal of Developmental Science, 2007
Is human ontogenesis a product of evolution or a result of individual decisions and actions? In the present paper we aim at solving this apparent conflict between a behavioral genetics approach and an action-theoretical perspective to human development. After a discussion of the idea of active and intentional self-development and the role of genes…
Descriptors: Individual Development, Evolution, Behavior Development, Genetics
Rosenblatt, Jay S. – European Journal of Developmental Science, 2007
In addition to his pioneering studies on prenatal development of social responses in the mallard, Gilbert Gottlieb made important theoretical contributions to the study of the evolution of behavior. This tribute to Gottlieb presents his early view that prenatal behavioral development is the product of evolution and his revision of this view in his…
Descriptors: Prenatal Influences, Individual Development, Genetics, Evolution
Scheithauer, Herbert; Niebank, Kay; Gottlieb, Gilbert – European Journal of Developmental Science, 2007
The aim of Developmental Science is to understand the complex interacting biopsychosocial mechanisms in the development of living organisms. Thus, Developmental Science has roots in both the biological and social disciplines and can bee seen as a meta-theory rooted in developmental principles to guide work and thinking on biology and social…
Descriptors: Developmental Psychology, Biology, Social Sciences, Social Behavior
Din, Neena; Bird, Terry H.; Berleman, James E. – American Biology Teacher, 2007
In this article, the authors present a laboratory activity that relies on the use of a very versatile bacterial system to introduce the concept of how mutagenesis can be used for molecular and genetic analysis of living organisms. They have used the techniques of random mutagenesis and selection/screening to obtain strains of the organism "R.…
Descriptors: Science Laboratories, Genetics, Botany, Science Activities
Krist, Amy C.; Showsh, Sasha A. – American Biology Teacher, 2007
Evolution is typically measured as a change in allele or genotype frequencies over one or more generations. Consequently, evolution is difficult to show experimentally in a semester-long lab course because most organisms have longer generation times than 15 weeks. In this article, the authors present an experiment to demonstrate and study…
Descriptors: Evolution, Microbiology, Science Instruction, Teaching Methods
Miller, Roxanne Greitz – Science Scope, 2007
If we abide by the familiar saying "you are what you eat," it is understandable that people may be concerned with the incredible advances in food science technology and their possible impacts on human health. For example, in recent years high-tech scientific processes such as genetic modification, irradiation, and cloning have all been used to…
Descriptors: Safety, Foods Instruction, Science Instruction, Technological Advancement
Hall, Scott S.; Burns, David D.; Reiss, Allan L. – Journal of Abnormal Child Psychology, 2007
Few studies have examined the impact of children with genetic disorders and their unaffected siblings on family functioning. In this study, the reciprocal causal links between problem behaviors and maternal distress were investigated in 150 families containing a child with fragile X syndrome (FXS) and an unaffected sibling. Both children's…
Descriptors: Children, Genetics, Congenital Impairments, Siblings
