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 84
... locus is sex - linked rather than autosomal , two - thirds of the genes1 in a population with a 1 : 1 sex ratio are ... locus , and p2 and 92 the frequencies of alleles B and B ' at a second locus . The loci recombine and segregate in ...
... locus is sex - linked rather than autosomal , two - thirds of the genes1 in a population with a 1 : 1 sex ratio are ... locus , and p2 and 92 the frequencies of alleles B and B ' at a second locus . The loci recombine and segregate in ...
Pagina 164
... loci that are not directly observed may cause the difference in fitness . Suppose that at the observed locus , A , the fitnesses of genotypes AA , AA ' and A'A ' are 1 , 1 , and 1 - S1 respectively , and that at a closely linked locus ...
... loci that are not directly observed may cause the difference in fitness . Suppose that at the observed locus , A , the fitnesses of genotypes AA , AA ' and A'A ' are 1 , 1 , and 1 - S1 respectively , and that at a closely linked locus ...
Pagina 227
... loci that , like our hypothetical locus A , reduce hybrid fitness , for it is only then that most genes will be closely linked to a locus that restricts gene exchange . The low fitness of hybrids in some narrow hybrid zones seems ...
... loci that , like our hypothetical locus A , reduce hybrid fitness , for it is only then that most genes will be closely linked to a locus that restricts gene exchange . The low fitness of hybrids in some narrow hybrid zones seems ...
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