Evolutionary BiologyOxford University Press, Incorporated, 1979 - 565 pagine Futuyma (ecology and evolution, SUNY Stony Brook) covers such subject areas as phylogeny, paleobiology, genetic mechanisms of change and speciation, character evolution, the theory of processes and macroevolution, and new molecular perspectives. Numerous line drawings, charts, diagrams, and maps are provided. Annotation copyrighted by Book News, Inc., Portland, OR |
Dall'interno del libro
Risultati 1-3 di 90
Pagina 29
... characteristics evolved because they were adaptive . Genetic drift can fix neutral or even maladaptive traits . Moreover the feature we are looking at may be irrelevant to the organism . We may be looking at the wrong aspect : redness ...
... characteristics evolved because they were adaptive . Genetic drift can fix neutral or even maladaptive traits . Moreover the feature we are looking at may be irrelevant to the organism . We may be looking at the wrong aspect : redness ...
Pagina 35
... characteristics should play an important role in evolution is implausible , for if the environmental conditions of the parents in one generation affect the characteristics of their offspring , the same should hold in the next generation ...
... characteristics should play an important role in evolution is implausible , for if the environmental conditions of the parents in one generation affect the characteristics of their offspring , the same should hold in the next generation ...
Pagina 343
... characteristics . Most variation is continuous in kind - body size is an example . Some characteristics , such as the number of scutellar bristles in Drosophila , vary discretely , but only because a fly can have four or five bristles ...
... characteristics . Most variation is continuous in kind - body size is an example . Some characteristics , such as the number of scutellar bristles in Drosophila , vary discretely , but only because a fly can have four or five bristles ...
Sommario
A Synopsis of Evolutionary Theory | 19 |
Heredity and Development | 33 |
The Ecological Context of Evolutionary Change | 51 |
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AA AA adaptive advantageous alleles alterations ancestor animals appear arise associated average become behavior biological birds body bristle cause cent Chapter character characteristics chromosome common complex consists depends derived determined developmental differentiation direction Discuss distribution diversity dominant drift Drosophila ecological effect environment environmental enzyme equilibrium evidence evolution evolutionary evolved example exist extinction factors Figure fitness fossil function gene flow gene frequency genetic genetic variation genotypes geographic greater growth heterozygotes higher highly human hybrid important increase individuals insects instances interactions isolated kinds less loci locus major males mating mean mechanisms mutation natural selection occur offspring organisms origin patterns phenotypic plants Pleistocene polymorphic population possible predators present probability produce recombination relative reproduction response sexual similar single speciation species structure theory tion variance vary