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 208
... bristle number in the various replicates had increased by 20-30 bristles over the original value — an increase of 12-19 phenotypic standard deviations , or 28-43 additive genetic standard deviations ( the square root of the additive ...
... bristle number in the various replicates had increased by 20-30 bristles over the original value — an increase of 12-19 phenotypic standard deviations , or 28-43 additive genetic standard deviations ( the square root of the additive ...
Pagina 213
... bristle number in ++ flies is highly canalized . Rendel postulated that bristle number is affected by an underlying character , perhaps a substance used in bristle formation , that has a continuous distribution in the population much ...
... bristle number in ++ flies is highly canalized . Rendel postulated that bristle number is affected by an underlying character , perhaps a substance used in bristle formation , that has a continuous distribution in the population much ...
Pagina 214
... bristles ; i.e. , there is no change in bristle number despite a large change in " Make . " ( B ) The distribution of “ Make ” in female flies of three genotypes at the scute locus ( sc ) . Both ++ and + sc lie within the canalization ...
... bristles ; i.e. , there is no change in bristle number despite a large change in " Make . " ( B ) The distribution of “ Make ” in female flies of three genotypes at the scute locus ( sc ) . Both ++ and + sc lie within the canalization ...
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adaptive adaptive radiation allele frequency allozyme Amer amino acid ancestor animals average behavior biological birds bristle number caused cells Chapter characters chromosome cladistic coefficient coevolution competition copies correlated deleterious developmental differentiation distribution divergence Dobzhansky Drosophila melanogaster ecological effect environment environmental enzyme equilibrium evidence evolutionary change evolved example extinction rate factors favor females Figure fitness fossil record function Futuyma gametes gene conversion gene flow gene frequencies genetic drift genetic variation genome genotypes geographic groups habitats heritability heterozygotes heterozygous higher taxa homozygotes homozygous host human hybrid inbreeding increase individual insects interactions Lewontin linkage disequilibrium loci locus males mammals mating mechanisms molecular morphological mutation natural selection nucleotide occur offspring organisms pairs parasites pattern phenotype phylogenetic phylogeny plants polymorphism predators prey proteins pseudogenes random recombination relative reproductive isolation sequence sexual similar speciation structure survival sympatric taxon theory tion trait transposable elements variable variance