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 53
Pagina 21
... offspring ; otherwise it can change . Change can occur if the phenotype ( the magnitude of the particular feature we are studying ) of offspring is not identical to their parents ( Figure 2 ) . If individuals of some phenotypes leave ...
... offspring ; otherwise it can change . Change can occur if the phenotype ( the magnitude of the particular feature we are studying ) of offspring is not identical to their parents ( Figure 2 ) . If individuals of some phenotypes leave ...
Pagina 35
... offspring , the same should hold in the next generation . Thus , as the environment fluctuates , there would be no net change . Moreover a system of heredity so subject to environmental influences would not persist very long because it ...
... offspring , the same should hold in the next generation . Thus , as the environment fluctuates , there would be no net change . Moreover a system of heredity so subject to environmental influences would not persist very long because it ...
Pagina 347
... offspring equals that of their parents if alleles act additively . In the cross AABB × AA'BB ' , for example , the average parental phenotype ( the “ midparent " ) is ( 6 + 3 ) / 2 = 4.5 , and the average offspring phenotype ( assuming ...
... offspring equals that of their parents if alleles act additively . In the cross AABB × AA'BB ' , for example , the average parental phenotype ( the “ midparent " ) is ( 6 + 3 ) / 2 = 4.5 , and the average offspring phenotype ( assuming ...
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