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. |
Dall'interno del libro
Risultati 1-3 di 49
Pagina 121
... inbreeding due to ( A ) sib mating and ( B ) parent - offspring mating . Squares represent males , circles females . Cop- ies of an A allele , At , are traced through three generations . Individual I possesses alleles that are identical ...
... inbreeding due to ( A ) sib mating and ( B ) parent - offspring mating . Squares represent males , circles females . Cop- ies of an A allele , At , are traced through three generations . Individual I possesses alleles that are identical ...
Pagina 124
... Inbreeding causes a decline in the mean phenotype if individuals with the greatest value of the trait are dominant homozygotes or are heterozygotes . ( If heterozygotes have the greatest value , the locus is said to be OVERDOMINANT ) ...
... Inbreeding causes a decline in the mean phenotype if individuals with the greatest value of the trait are dominant homozygotes or are heterozygotes . ( If heterozygotes have the greatest value , the locus is said to be OVERDOMINANT ) ...
Pagina 127
... INBRED POPULATIONS Numerous investigators have used genotype frequencies at enzyme loci to esti- mate the inbreeding coefficient in plant populations . As theory predicts , the frequency of heterozygotes is reduced in self - fertilizing ...
... INBRED POPULATIONS Numerous investigators have used genotype frequencies at enzyme loci to esti- mate the inbreeding coefficient in plant populations . As theory predicts , the frequency of heterozygotes is reduced in self - fertilizing ...
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