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Stansfield, William D. – American Biology Teacher, 2006
A history of the search for the structure of DNA, as revealed in the evolution of biochemistry and genetics textbooks, reveals that they are unacceptably tardy in presenting the current (or even the recent) state of knowledge. This problem places an extra burden on biology teachers to supplement these texts.
Descriptors: Textbooks, Biochemistry, Biology, Genetics
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Friedrichsen, Patricia Meis – American Biology Teacher, 2001
Describes a specialized biology course designed to meet the needs of prospective elementary teachers. The original course was oriented towards hands-on activities for K-8 classrooms, improving prospective elementary teachers' attitudes toward science, and increasing self-efficacy in science teaching. Original goals were re-examined with the advent…
Descriptors: Biology, Course Descriptions, Hands on Science, Higher Education
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Cherif, Abour; Adams, Gerald; Loehr, John – American Biology Teacher, 2001
Demonstrates the use of geological concepts and principles as an effective approach to teaching evolution and in turn the nature of science and the scientific method in the classroom. This approach to teaching makes it easier for students to understand the basic concepts of evolution which is really important in order to understand nature as it…
Descriptors: Evolution, Geology, Higher Education, Scientific Methodology
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Geiger, Jon R. – American Biology Teacher, 1984
Discusses techniques involved in producing recombinant DNA. Also discusses implications of the new genetic technologies and prospects for the future. (JN)
Descriptors: Biology, College Science, DNA, Futures (of Society)
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Moore, Randy – American Biology Teacher, 1984
Discusses graviperception and gravitropism by plant roots. Indicates that graviperception occurs via sedimentation of amyloplasts in columella cells of the root cap and that the minimal graviresponsiveness of lateral roots may be due to the intensity of their caps to establish a concentration gradient of inhibitor(s) sufficient to affect…
Descriptors: Botany, College Science, Gravity (Physics), High Schools
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Kaveski, Sharon; Margulis, Lynn – American Biology Teacher, 1983
Discusses the "sudden explosion" of animal fossils during the Cambrian era, suggesting that the "explosion" is a result of organic evolution, leading to remarkably preservable calcareous skeletons. Suggests that earlier organisms were soft-bodied and consequently were poorly preserved in the fossil record. (JN)
Descriptors: Biology, College Science, Evolution, High Schools
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Crovello, Theodore J. – American Biology Teacher, 1982
Discusses the use of computers for nine different tasks in biological education: information retrieval, data accumulation, data analysis, simulation and systems analysis, decision making, experimental control, course review, computer-managed instruction, and word processing. (PEB)
Descriptors: Biological Sciences, College Science, Computer Assisted Instruction, Computer Managed Instruction
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Bardell, David – American Biology Teacher, 1997
Biology textbooks usually give examples of organisms that have become ideally adapted to their habitat as a result of evolution. This article illustrates some poorly adapted organisms. Imperfections serve to demonstrate the purely chance nature of evolution since either the beneficial changes have not happened or the modifications that have…
Descriptors: Animals, Biological Influences, Biology, Elementary Secondary Education
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Murfin, Brian – American Biology Teacher, 1998
Emphasizes the unique advantages of computer-mediated communication (CMC) for teaching genetics. CMC allows students to collect larger sample sizes than other methods and from any part of the world in a very short time. Describes hardware and software requirements, useful tools and techniques, and a sample project on human genetics for a…
Descriptors: Classroom Techniques, Computer Assisted Instruction, Computer Mediated Communication, Cooperation
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Windschitl, Mark A. – American Biology Teacher, 1998
Computer-based simulations of scientific phenomena provide learner-centered environments within which students can explore systems, manipulate variables, and test hypotheses. Explains how simulations fit into the big picture of instruction and offers recommendations for developing a written guide for students, determining student accountability,…
Descriptors: Classroom Techniques, Computer Assisted Instruction, Computer Simulation, Learning Activities
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Mott, John E. – American Biology Teacher, 1984
Examines heterologous expression in Escherichia coli and the role of regulatory sequences which control gene expression at transcription resulting in abundant production of messenger RNA and regulatory sequences in mRNA which promote efficient translation. Also examines the role of E. coli cells in stabilizing mRNA and protein that is…
Descriptors: Biochemistry, College Science, DNA, Genetic Engineering
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Kunz, Thomas H. – American Biology Teacher, 1984
Information on bats is provided, focusing on their diversity and distribution, characteristics, food habits, activities, roosting and social habits, reproduction, number of young and size at birth, hibernation, mortality and longevity, and movements and navigation. Additional information related to public health/disease concerns and bat management…
Descriptors: Animal Behavior, Animals, Biology, College Science
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Blackwelder, R. E.; Garoian, George S. – American Biology Teacher, 1984
Discusses the life cycle of a fluke to illustrate a form of larval reproduction which occurs in many trematode flatworms. Polyembryony, production of many embryos by the breakup of the one early embryo that resulted from sexual reproduction, is considered. (JN)
Descriptors: Animals, Biology, College Science, Embryology
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Blackwelder, R. E.; Garoian, G. S. – American Biology Teacher, 1984
Provides examples of animals in which growth occurs without cell division. Indicates that this phenomenon (called cell constancy or eutely) is an oddity of development that has arisen independently in several animal groups. (JN)
Descriptors: Animals, Biology, College Science, High Schools
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Shymansky, James – American Biology Teacher, 1984
Examined Biological Sciences Curriculum Study (BSCS) programs showing how they compare to each other and other science programs and how various student groups performed. Student comparisons were made by sex, IQ, ability grouping, and socioeconomic status. Teacher background, school size and location were also examined. Summary and recommendations…
Descriptors: Academic Achievement, Biology, Course Evaluation, Curriculum Evaluation
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