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. |
Dall'interno del libro
Risultati 1-3 di 34
Pagina 51
... homologous chromosomes recognize each other by some unknown mechanism and become precisely aligned in synapsis . Crossing over may then occur . In one model of crossing over , nicks are made at corresponding points in a single strand of ...
... homologous chromosomes recognize each other by some unknown mechanism and become precisely aligned in synapsis . Crossing over may then occur . In one model of crossing over , nicks are made at corresponding points in a single strand of ...
Pagina 410
... homologous to parts of the gill arches of fishes , and perhaps to elements of the branchial basket of agnathans . Such transformations often include changes in the number of elements , in their size , shape and position , in their ...
... homologous to parts of the gill arches of fishes , and perhaps to elements of the branchial basket of agnathans . Such transformations often include changes in the number of elements , in their size , shape and position , in their ...
Pagina 436
... homology ( Wagner 1986 ) . Nevertheless , the structures of different organisms can be homologous even though their developmental pathways have come to differ substantially ; form can be more conservative than the developmental route by ...
... homology ( Wagner 1986 ) . Nevertheless , the structures of different organisms can be homologous even though their developmental pathways have come to differ substantially ; form can be more conservative than the developmental route by ...
Sommario
CONCEPTIONS AND MISCONCEPTIONS | 7 |
EVOLUTION SINCE THE SYNTHESIS | 13 |
ADAPTATION AND ENVIRONMENT | 19 |
Copyright | |
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adaptive adaptive radiation allele frequency allozyme Amer amino acid ancestor animals average behavior Biol biological birds bristle cells Chapter characters chromosome coefficient coevolution common competition copies correlation developmental differentiation distribution divergence Dobzhansky Drosophila melanogaster ecological effect environment environmental enzyme equilibrium evidence evolution evolutionary change evolved example extinction factors females Figure fitness fossil record function Futuyma gametes gene conversion gene family gene flow gene frequencies genetic drift genetic variation genome genotypes geographic heritability heterozygotes heterozygous homologous homozygotes homozygous host human hybrid inbreeding increase individual insects interactions Lewontin linkage disequilibrium loci locus males mammals mating mechanisms molecular morphological mutation natural selection neoteny nucleotide occur offspring organisms paedomorphosis pairs parasites pattern phenotypic phylogenetic phylogeny plants polymorphism predators prey proteins pseudogenes random recombination segments sexual similar speciation structure sympatric Syst theory tion traits transposable elements University Press variable variance vertebrates York