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 100
... plants enhances the likelihood that pollen will be deposited by insects on the stigma of a plant of the opposite type ; thus cross - fertilization is facilitated . Occasionally plants with both a long ( pin ) style and elevated ( thrum ) ...
... plants enhances the likelihood that pollen will be deposited by insects on the stigma of a plant of the opposite type ; thus cross - fertilization is facilitated . Occasionally plants with both a long ( pin ) style and elevated ( thrum ) ...
Pagina 126
... plants the distance to which pollen and seeds are dispersed affects the frequency of consanguineous matings . In addition , plants are frequently hermaphroditic and often capable of self - pollination . A single plant may have separate ...
... plants the distance to which pollen and seeds are dispersed affects the frequency of consanguineous matings . In addition , plants are frequently hermaphroditic and often capable of self - pollination . A single plant may have separate ...
Pagina 282
... plants an allele arises that in homozygous condition causes all the plant's ovules to be self- fertilized , but that the plant's pollen is nonetheless dispersed to other plants . Such an allele automatically has a strong selective ...
... plants an allele arises that in homozygous condition causes all the plant's ovules to be self- fertilized , but that the plant's pollen is nonetheless dispersed to other plants . Such an allele automatically has a strong selective ...
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