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 93
Pagina 84
... locus is sex - linked rather than autosomal , two - thirds of the genes ' 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 genes ' 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 amino acid ancestor average behavior biological birds bristle cells Chapter characters chromosome coefficient coevolution common competition copies correlated deleterious developmental differentiation distribution divergence Drosophila melanogaster ecological effect environment environmental enzyme equilibrium evidence evolution evolutionary change evolved example factors favor females Figure fitness fossil record function Futuyma gametes gene conversion gene family gene flow gene frequencies genetic drift genetic variation genome genotypes geographic groups heritability heterozygotes heterozygous higher taxa homologous homozygotes homozygous host human hybrid inbreeding increase individual insects interactions Lewontin linkage disequilibrium loci locus males mammals mating mean mechanisms molecular morphological mutation natural selection neoteny nucleotide occur offspring organisms pairs parasites pattern phenotypic phylogenetic phylogeny plants polymorphism population predators prey proteins pseudogenes random recombination related species relative reproductive isolation segments sexual similar speciation structure survival sympatric theory tion traits transposable elements variable variance vertebrates