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 75
Pagina 216
... polymorphic at no less than 30 per cent of its loci and that the polymorphic loci have so many alleles ( 2-6 ) at such high frequencies that an average fly is likely to be heterozygous at about 12 per cent of its loci . If these loci ...
... polymorphic at no less than 30 per cent of its loci and that the polymorphic loci have so many alleles ( 2-6 ) at such high frequencies that an average fly is likely to be heterozygous at about 12 per cent of its loci . If these loci ...
Pagina 217
... polymorphic than invertebrates , and species that form small local populations or are otherwise known to be inbred have reduced levels of heterozygosity . But even inbreeding plants such as wild oats are highly polymorphic ; they ...
... polymorphic than invertebrates , and species that form small local populations or are otherwise known to be inbred have reduced levels of heterozygosity . But even inbreeding plants such as wild oats are highly polymorphic ; they ...
Pagina 339
... polymorphic due to selection . But it is easy to advance a neutralist explanation by supposing that the less polymorphic enzymes are those that can function only if they have a very precise configuration ; variants are deleterious . The ...
... polymorphic due to selection . But it is easy to advance a neutralist explanation by supposing that the less polymorphic enzymes are those that can function only if they have a very precise configuration ; variants are deleterious . The ...
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