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 97
... enzyme are presumably genetically the same . So it is possible to identify an invariant gene locus by finding an invariant enzyme . By taking a random sample of all kinds of enzymes and determining what fraction of them is genetically ...
... enzyme are presumably genetically the same . So it is possible to identify an invariant gene locus by finding an invariant enzyme . By taking a random sample of all kinds of enzymes and determining what fraction of them is genetically ...
Pagina 181
... enzymes have provided strongly suggestive evidence that allozyme genotypes differ in fitness when the appropriate substrate for the enzyme is provided ( Koehn et al . 1983 ) . This technique is especially useful if the organism can be ...
... enzymes have provided strongly suggestive evidence that allozyme genotypes differ in fitness when the appropriate substrate for the enzyme is provided ( Koehn et al . 1983 ) . This technique is especially useful if the organism can be ...
Pagina 477
... enzyme ( the ebg enzyme ) that enabled it to hydrolyze lactose ; this enzyme is different from the normal ẞ - galactosidase . Transcription of the gene ( ebgA ) for this enzyme is ordinarily repressed by an operator gene ( ebgR ) that ...
... enzyme ( the ebg enzyme ) that enabled it to hydrolyze lactose ; this enzyme is different from the normal ẞ - galactosidase . Transcription of the gene ( ebgA ) for this enzyme is ordinarily repressed by an operator gene ( ebgR ) that ...
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 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