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 43
Pagina 39
... proportion p carry A alleles and a proportion q ( = 1 − p ) carry A ' alleles ( Figure 3 ) . Suppose that among a large number of randomly mating individuals , half of each sex has genotype AA , and the other half AA ' . Of all the ...
... proportion p carry A alleles and a proportion q ( = 1 − p ) carry A ' alleles ( Figure 3 ) . Suppose that among a large number of randomly mating individuals , half of each sex has genotype AA , and the other half AA ' . Of all the ...
Pagina 293
... proportion of A is Ap = PRA PRA + qRB pq ( R1 - RB ) . - -P , or R As long as RA > RB , p increases ( Ap > 0 ) until ... proportion p2 / ( p2 + pq ) = p occurs in the AA homozygotes , and a proportion pq / ( p2 + pq ) = q occurs in the ...
... proportion of A is Ap = PRA PRA + qRB pq ( R1 - RB ) . - -P , or R As long as RA > RB , p increases ( Ap > 0 ) until ... proportion p2 / ( p2 + pq ) = p occurs in the AA homozygotes , and a proportion pq / ( p2 + pq ) = q occurs in the ...
Pagina 314
... proportion that sur- vives is 1 ; of the ( 1⁄2 ) ( 2pq ) A ' genes in the heterozygotes , the relative proportion that survives is 1 s . Therefore the fraction of surviving A ' genes is ( 1⁄2 ) ( 2pq ) ( 1 − s ) + q2 ( 1 ) , or pq ( 1 ...
... proportion that sur- vives is 1 ; of the ( 1⁄2 ) ( 2pq ) A ' genes in the heterozygotes , the relative proportion that survives is 1 s . Therefore the fraction of surviving A ' genes is ( 1⁄2 ) ( 2pq ) ( 1 − s ) + q2 ( 1 ) , or pq ( 1 ...
Sommario
A Synopsis of Evolutionary Theory | 19 |
Heredity and Development | 33 |
The Ecological Context of Evolutionary Change | 51 |
Copyright | |
19 sezioni non visualizzate
Altre edizioni - Visualizza tutto
Parole e frasi comuni
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