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Peer reviewedCharlesworth, Brian – Science, 1991
The evolutionary paths by which the characteristic properties of sex chromosomes may have evolved are reviewed. The evolution of the X and Y chromosomes from a cosexual ancestor is discussed. (CW)
Descriptors: DNA, Evolution, Genetics, Heredity
Peer reviewedWerren, John H. – Science, 1980
This study discusses the behavior of the females of the parasitic wasp Nasonia vitripennis, which adjust the sex ratio of their broods according to whether or not they are the first or second wasp to parasitize a host. The results provide a quantitative test of sex ratio theory. (Author/SA)
Descriptors: Animal Behavior, Biological Influences, Entomology, Evolution
Peer reviewedSkinner, B. F. – Science, 1981
Presents the viewpoints of a prominent behavioral scientist concerning the role of the environment in the evolution of behavior. (CS)
Descriptors: Animal Behavior, Behavior, Biological Sciences, College Science
Peer reviewedHolden, Constance – Science, 1988
Discusses some of the similarities and differences between the attitudes of Japanese and American citizens toward science. Reports on major discrepancies between the two populations' views about such things as evolution, the development of new plants and animals, and the effect of rocket launchings on the weather. (TW)
Descriptors: Controversial Issues (Course Content), Environmental Education, Evolution, Foreign Countries
