Evolutionary BiologyFutuyma (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 230
For example , if a population has just been formed by mixing two homozygous
stocks AABB and A'A'B'B ' in equal numbers , the gene frequencies P1 , P2 , 91 ,
and q2 all equal 1/2 , but only two kinds of gametes are formed , AB and A'B ' ...
For example , if a population has just been formed by mixing two homozygous
stocks AABB and A'A'B'B ' in equal numbers , the gene frequencies P1 , P2 , 91 ,
and q2 all equal 1/2 , but only two kinds of gametes are formed , AB and A'B ' ...
Pagina 330
Here the curves represent gene frequency values of equal fitness . There is a
peak at H , toward which the population moves by natural selection ; minimal
values of W are at the points L. ( even if it is higher ) because it would have to go
...
Here the curves represent gene frequency values of equal fitness . There is a
peak at H , toward which the population moves by natural selection ; minimal
values of W are at the points L. ( even if it is higher ) because it would have to go
...
Pagina 336
The neutralist school points out that an entirely neutral mutation has a probability
of 1 / 2N of being fixed in a population of effective size N ; the rate at which such
mutations are fixed is equal to the mutation rate u . Because there are many ...
The neutralist school points out that an entirely neutral mutation has a probability
of 1 / 2N of being fixed in a population of effective size N ; the rate at which such
mutations are fixed is equal to the mutation rate u . Because there are many ...
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Sommario
A Synopsis of Evolutionary Theory | 19 |
Heredity and Development | 33 |
The Ecological Context of Evolutionary Change | 51 |
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adaptive advantageous alleles alterations ancestor 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 equal equilibrium evidence evolution evolutionary evolved example exist extinction factors females 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 proportion recombination relative reproduction response sexual similar single speciation species structure suggests theory tion variance vary