Evolutionary BiologyCovers 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
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Pagina 55
AA ' Phenotype FIGURE 7 Two possible relationships between amount of gene
product ( e . g . , an enzyme ) and a phenotypic character such as intensity of
pigmentation . In both cases the amount of gene product in the heterozygote is ...
AA ' Phenotype FIGURE 7 Two possible relationships between amount of gene
product ( e . g . , an enzyme ) and a phenotypic character such as intensity of
pigmentation . In both cases the amount of gene product in the heterozygote is ...
Pagina 154
MODES OF SELECTION The opportunity for selection exists when differences in
some phenotypic characteristic result in ... but there is no evolutionary response
to selection unless the differences in phenotype are at least partly due to genetic
...
MODES OF SELECTION The opportunity for selection exists when differences in
some phenotypic characteristic result in ... but there is no evolutionary response
to selection unless the differences in phenotype are at least partly due to genetic
...
Pagina 199
For example , suppose genotypes AA , AA ' , and A ' A ' have phenotypes 6 , 5 ,
and 4 respectively . ... If both AA and AA ' have a phenotype of 6 and A ' A ' of 4 ,
the midparent value in the cross AA X A ' A ' is 5 , the Fi phenotype is 6 , and the ...
For example , suppose genotypes AA , AA ' , and A ' A ' have phenotypes 6 , 5 ,
and 4 respectively . ... If both AA and AA ' have a phenotype of 6 and A ' A ' of 4 ,
the midparent value in the cross AA X A ' A ' is 5 , the Fi phenotype is 6 , and the ...
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Sommario
CONCEPTIONS AND MISCONCEPTIONS | 7 |
ADAPTATION AND ENVIRONMENT | 19 |
COMPLEX INTERACTIONS AMONG SPECIES | 34 |
Copyright | |
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adaptive advantage allele allele frequency America appear arise associated average become behavior biological birds caused Chapter characteristics characters chromosome common competition conversion copies correlation depends described determined developmental differentiation direct 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 genotypes geographic greater groups growth higher host human hybrid important increase individual insects interactions isolation less lineage loci locus lower major males mating mean mechanisms morphological mutation natural selection occur organisms origin pairs pattern phenotype plants Pleistocene polymorphism population possible predators probability reduced region relationships relative represent reproductive response separate sequence similar single speciation species structure taxa term theory tion trait usually variance variation vary