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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Risultati 1-3 di 82
Pagina 60
... term gene should also embrace nontranslated regulatory regions and nontranscribed sequences . " Mutation " is similarly a vague term . It is often defined as a change in the base pair sequence of a gene , but sometimes the term is ...
... term gene should also embrace nontranslated regulatory regions and nontranscribed sequences . " Mutation " is similarly a vague term . It is often defined as a change in the base pair sequence of a gene , but sometimes the term is ...
Pagina 89
... term in parentheses with q2 , and substituting 1 p for q in the second parenthetical term , v = 2a2 [ pq + 2p2q2 + 2pq ( p2 − p ) ] = 2pqa [ 1 + 2p ( 1 − p ) + 2 ( p2 - p ) ] The terms within the brackets sum to one , leaving v ...
... term in parentheses with q2 , and substituting 1 p for q in the second parenthetical term , v = 2a2 [ pq + 2p2q2 + 2pq ( p2 − p ) ] = 2pqa [ 1 + 2p ( 1 − p ) + 2 ( p2 - p ) ] The terms within the brackets sum to one , leaving v ...
Pagina 402
... term trends in morphology are the consequence not of anagenetic change within single lineages , but of selection among species . Character states associated with low rates of extinction or high rates of speciation will become prevalent ...
... term trends in morphology are the consequence not of anagenetic change within single lineages , but of selection among species . Character states associated with low rates of extinction or high rates of speciation will become prevalent ...
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