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 20
... region that represents toler- able combinations of temperature , prey size , and salinity . To take into account other environmental factors we would have to draw many more axes ( which we can do only in imagination ) . We conceive of ...
... region that represents toler- able combinations of temperature , prey size , and salinity . To take into account other environmental factors we would have to draw many more axes ( which we can do only in imagination ) . We conceive of ...
Pagina 215
... region have a stable ( canalized ) number of digits ; if z lies in a threshold region , say T3 , digit number may be either 3 or 4. If zo is the initial population mean and lies in digit region 4 ( solid curve ) , most of the population ...
... region have a stable ( canalized ) number of digits ; if z lies in a threshold region , say T3 , digit number may be either 3 or 4. If zo is the initial population mean and lies in digit region 4 ( solid curve ) , most of the population ...
Pagina 434
... regions convert one or more abdominal segments into mesothorax ( T2 ) . Each of the several genes in the Ultrabithorax ( Ubx ) region governs a compartment from T2 through A1 . The mutant bxd , for example , converts A1 to T2 ; bx and ...
... regions convert one or more abdominal segments into mesothorax ( T2 ) . Each of the several genes in the Ultrabithorax ( Ubx ) region governs a compartment from T2 through A1 . The mutant bxd , for example , converts A1 to T2 ; bx and ...
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