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 68
... crossing over subsequently more likely , because the gene in the first position on one chromosome may recognize and pair with the gene in the second position on the other ... crossing over Unequal crossing over Ordinarily 68 Chapter Three.
... crossing over subsequently more likely , because the gene in the first position on one chromosome may recognize and pair with the gene in the second position on the other ... crossing over Unequal crossing over Ordinarily 68 Chapter Three.
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 ...
Sommario
CONCEPTIONS AND MISCONCEPTIONS | 7 |
EVOLUTION SINCE THE SYNTHESIS | 13 |
ADAPTATION AND ENVIRONMENT | 19 |
Copyright | |
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adaptive advantage allele allele frequency animals appear arise associated average become behavior biological cause cells Chapter characteristics characters chromosome common competition condition conversion copies correlation depends determined developmental differentiation distribution divergence Drosophila ecological effect elements environment enzyme equilibrium evidence evolution evolutionary evolved example exist expression extinction factors Figure fitness fossil frequency function gene genetic genetic drift genome genotypes geographic greater groups growth higher host human hybrid important increase individual insects interactions isolation less linkage loci locus lower major males mating mean mechanisms morphological mutation natural selection occur organisms origin pairs pattern phenotypic plants Pleistocene polymorphism population possible predators Press probability proteins reduced region relationships relative represent reproductive response sequence similar single speciation species structure taxa term theory tion traits variance variation vary