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 83
Pagina 292
... reproduction ; it is differential survival and reproduction - and no more . It shapes order , form , and wondrous adaptations from the chaos of mutation and recombination , but it is an impersonal , purely mechanical , statistical ...
... reproduction ; it is differential survival and reproduction - and no more . It shapes order , form , and wondrous adaptations from the chaos of mutation and recombination , but it is an impersonal , purely mechanical , statistical ...
Pagina 302
... reproduction itself , seemingly , should not have evolved ( Maynard Smith 1971 , Williams 1975 ) . An allele that codes for sexual reproduction can increase only half as fast as one that causes its bearer to reproduce asexually ...
... reproduction itself , seemingly , should not have evolved ( Maynard Smith 1971 , Williams 1975 ) . An allele that codes for sexual reproduction can increase only half as fast as one that causes its bearer to reproduce asexually ...
Pagina 303
... reproduction , compared to those of an allele s coding for asexual reproduction . Each female produces four equally fit offspring , but the frequency of the sexual allele rapidly drops from 1⁄2 in the ssAABb ssAABb SSAaBb SSAABB 0 ÒÒÒÒ ...
... reproduction , compared to those of an allele s coding for asexual reproduction . Each female produces four equally fit offspring , but the frequency of the sexual allele rapidly drops from 1⁄2 in the ssAABb ssAABb SSAaBb SSAABB 0 ÒÒÒÒ ...
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