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
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Pagina 373
... bristle number and returns to its original state if selection is relaxed . Lerner ( 1954 ) referred to this ... Number of individuals Low - selected Populations Base High - selected 0 10 20 30 40 50 60 Number of bristles 70 80 90 ...
... bristle number and returns to its original state if selection is relaxed . Lerner ( 1954 ) referred to this ... Number of individuals Low - selected Populations Base High - selected 0 10 20 30 40 50 60 Number of bristles 70 80 90 ...
Pagina 378
... number of bristles on the scutellum from the normal ( wild type , denoted + ) number of four , to a more variable , lower number . The mutation also reduces the number ... bristle number in an scsc population that 378 CHAPTER FIFTEEN.
... number of bristles on the scutellum from the normal ( wild type , denoted + ) number of four , to a more variable , lower number . The mutation also reduces the number ... bristle number in an scsc population that 378 CHAPTER FIFTEEN.
Pagina 381
... number of scutellar and abdominal bristles , while selection for increased scutellar bristles in ++ flies lowers the abdominal bristle number ! Rendel postulates ( Figure 9 ) that the two kinds of bristles are formed from a common pool ...
... number of scutellar and abdominal bristles , while selection for increased scutellar bristles in ++ flies lowers the abdominal bristle number ! Rendel postulates ( Figure 9 ) that the two kinds of bristles are formed from a common pool ...
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 alterations ancestor arise artificial selection average become behavior biological birds bristle number cent Chapter character characteristics chromosome coefficient 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 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