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 |
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Pagina 252
It is important to ask , though , whether true evolutionary novelties actually arise by mutation . For example , can both a new enzyme and the regulatory system that modulates its production arise by mutation ?
It is important to ask , though , whether true evolutionary novelties actually arise by mutation . For example , can both a new enzyme and the regulatory system that modulates its production arise by mutation ?
Pagina 254
Thus variation can arise at a far higher rate than it could by mutation alone . —— ? g But these extreme homozygous genotypes arise only infrequently . For example , if these five loci segregate independently , the probability is only ...
Thus variation can arise at a far higher rate than it could by mutation alone . —— ? g But these extreme homozygous genotypes arise only infrequently . For example , if these five loci segregate independently , the probability is only ...
Pagina 438
The problem of how new variations arise falls not within the province of mathematical genetical theory , but within that of molecular genetics and development biology . Our ignorance of how genotypes produce phenotypes is , I believe ...
The problem of how new variations arise falls not within the province of mathematical genetical theory , but within that of molecular genetics and development biology . Our ignorance of how genotypes produce phenotypes is , I believe ...
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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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AA AA adaptive advantageous alleles alterations ancestor animals 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 equilibrium evidence evolution evolutionary evolved example exist extinction factors 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 recombination relative reproduction response sexual similar single speciation species structure theory tion variance vary