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 30
Pagina 46
... expression of a gene also varies . This milieu can be altered by variation in the genetic environ- ment or sometimes in precisely the same ways by variation in the external environment : temperature , nutrition , and the like . For ex ...
... expression of a gene also varies . This milieu can be altered by variation in the genetic environ- ment or sometimes in precisely the same ways by variation in the external environment : temperature , nutrition , and the like . For ex ...
Pagina 316
... expression if fitnesses are constant . For example , suppose s1 = 0 , so that A ' is deleterious but completely recessive with respect to fitness . ( That is , the heterozygote and the AA homozygote have the same , higher fitness ...
... expression if fitnesses are constant . For example , suppose s1 = 0 , so that A ' is deleterious but completely recessive with respect to fitness . ( That is , the heterozygote and the AA homozygote have the same , higher fitness ...
Pagina 378
... expression of an underlying continuous variable that might be called bristle- making ability , or , as Rendel calls it , Make ( M ) . It might be , for example , the amount of an enzyme that forms bristle components . Rendel assumes ...
... expression of an underlying continuous variable that might be called bristle- making ability , or , as Rendel calls it , Make ( M ) . It might be , for example , the amount of an enzyme that forms bristle components . Rendel assumes ...
Sommario
A Synopsis of Evolutionary Theory | 19 |
Heredity and Development | 33 |
The Ecological Context of Evolutionary Change | 51 |
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AA AA AA adaptive adaptive radiation advantageous alleles ancestor arise artificial selection average become behavior biological birds bristle number cent Chapter character characteristics chromosome coefficient complex correlated deleterious depends developmental differentiation distribution diversity Dobzhansky dominant Drosophila ecological effect environment environmental enzyme epistasis epistatic equilibrium evidence evolutionary change evolved example extinction factors females Figure fitness flies fossil record function gametes gene flow gene frequency genetic change genetic drift genetic variation genome genotypes geographic habitats heterozygotes heterozygous homozygotes homozygous host human hybrid inbreeding increase individuals insects interactions less Lewontin linkage disequilibrium loci locus major males mammals mating Mayr mechanisms morphological mutation rates natural selection niche number of species occur offspring organisms overdominance patterns phenotypic phylogenetic plants pollen polymorphic population predators probability protein random rate of evolution recombination reproductive isolation response sexual similar single speciation structure survival sympatric theory tion traits variance vary