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 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 ...
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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