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 43
Pagina 51
... Crossing over may then occur . In one model of crossing over , nicks are made at corresponding points in a single strand of each of the two aligned molecules and each free end is joined with the broken strand of the other molecule ...
... Crossing over may then occur . In one model of crossing over , nicks are made at corresponding points in a single strand of each of the two aligned molecules and each free end is joined with the broken strand of the other molecule ...
Pagina 77
... crossing over between homologous chromosomes . These processes vary greatly among different organisms . Sexual reproduction can involve two individuals or one , as in self - fertilizing plants . In ameiotic par- thenogenesis , meiosis ...
... crossing over between homologous chromosomes . These processes vary greatly among different organisms . Sexual reproduction can involve two individuals or one , as in self - fertilizing plants . In ameiotic par- thenogenesis , meiosis ...
Pagina 465
... crossing over changes the number of tandem copies on a chromosome , whereas gene conversion changes identity but not number . Un- equal crossing over affects only tandemly repeated genes , but gene conversion is known to occur between ...
... crossing over changes the number of tandem copies on a chromosome , whereas gene conversion changes identity but not number . Un- equal crossing over affects only tandemly repeated genes , but gene conversion is known to occur between ...
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