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 199
... offspring . For example , suppose genotypes AA , AA ' , and A'A ' have phenotypes 6 , 5 , and 4 respectively . Then the mean of the parents ( the MIDPARENT VALUE ) in the cross AA × A'A ' is ( 6 + 4 ) / 2 5. This is the mean of the F1 ...
... offspring . For example , suppose genotypes AA , AA ' , and A'A ' have phenotypes 6 , 5 , and 4 respectively . Then the mean of the parents ( the MIDPARENT VALUE ) in the cross AA × A'A ' is ( 6 + 4 ) / 2 5. This is the mean of the F1 ...
Pagina 200
... offspring . Estimates of VA , and especially VD and VI , are often imprecise unless large samples and a careful breeding scheme are employed . Nevertheless , some esti- mates of variance components ( Table II ) show an interesting ...
... offspring . Estimates of VA , and especially VD and VI , are often imprecise unless large samples and a careful breeding scheme are employed . Nevertheless , some esti- mates of variance components ( Table II ) show an interesting ...
Pagina 262
... offspring . Although the reciprocal degree of relation- ship between parent and offspring is the same , we would ordinarily expect parents to sacrifice more for their offspring than vice versa , since the probable future reproductive ...
... offspring . Although the reciprocal degree of relation- ship between parent and offspring is the same , we would ordinarily expect parents to sacrifice more for their offspring than vice versa , since the probable future reproductive ...
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