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 81
Pagina 303
... allele S , which codes for sexual 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 ...
... allele S , which codes for sexual 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 ...
Pagina 315
... allele , of a more general equation derived in Box A. = This equation shows that the advantageous allele increases in fre- quency ( Aq is positive ) , at a rate that is proportional to the strength of selection s and to both the ...
... allele , of a more general equation derived in Box A. = This equation shows that the advantageous allele increases in fre- quency ( Aq is positive ) , at a rate that is proportional to the strength of selection s and to both the ...
Pagina 503
... allele or genotype to the next gen- eration or to succeeding generations , compared with that of other alleles or genotypes . See Chapter 12 . fixation Attainment of a frequency of 1 ( i.e. , 100 per cent ) by an allele in a population ...
... allele or genotype to the next gen- eration or to succeeding generations , compared with that of other alleles or genotypes . See Chapter 12 . fixation Attainment of a frequency of 1 ( i.e. , 100 per cent ) by an allele in a population ...
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