Evolutionary BiologySinauer Associates, 1986 - 600 pagine Covers the genetic, developmental, and ecological mechanisms of evolutionary change, the major features of evolutionary history as revealed by phylogenetic and paleontological studies, and material on adaptation, molecular evolution, co-evolution, and human evolution. |
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Pagina 110
... vary geographically . For example , the form and number of chromo- somes frequently differs among populations , as in the plant Clarkia unguiculata , in which populations differ by three to seven reciprocal translocations and form ...
... vary geographically . For example , the form and number of chromo- somes frequently differs among populations , as in the plant Clarkia unguiculata , in which populations differ by three to seven reciprocal translocations and form ...
Pagina 116
... vary within species of many other vertebrates . Even as fundamental a character as the number of cotyledons , which distinguishes the two great classes of angiosperms , varies intraspecifically in the shrub Pittosporum , and it has been ...
... vary within species of many other vertebrates . Even as fundamental a character as the number of cotyledons , which distinguishes the two great classes of angiosperms , varies intraspecifically in the shrub Pittosporum , and it has been ...
Pagina 178
... vary clinally with latitude in several continents , but the polymorphism is ubiq- uitous ( van Delden 1982 ) . Kreitman ( 1983 ) determined the nucleotide sequence of a number of individual genes of both electromorphs ( see Chapter 15 ) ...
... vary clinally with latitude in several continents , but the polymorphism is ubiq- uitous ( van Delden 1982 ) . Kreitman ( 1983 ) determined the nucleotide sequence of a number of individual genes of both electromorphs ( see Chapter 15 ) ...
Sommario
CONCEPTIONS AND MISCONCEPTIONS | 7 |
EVOLUTION SINCE THE SYNTHESIS | 13 |
ADAPTATION AND ENVIRONMENT | 19 |
Copyright | |
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adaptive advantage allele allele frequency animals appear arise associated average become behavior biological cause cells Chapter characteristics characters chromosome common competition condition conversion copies correlation depends determined developmental differentiation distribution divergence Drosophila ecological effect elements environment enzyme equilibrium evidence evolution evolutionary evolved example exist expression extinction factors Figure fitness fossil frequency function gene genetic genetic drift genome genotypes geographic greater groups growth higher host human hybrid important increase individual insects interactions isolation less linkage loci locus lower major males mating mean mechanisms morphological mutation natural selection occur organisms origin pairs pattern phenotypic plants Pleistocene polymorphism population possible predators Press probability proteins reduced region relationships relative represent reproductive response sequence similar single speciation species structure taxa term theory tion traits variance variation vary