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 56
... cells of a multicellular organism's body . Certain cells may become polyploid , as in the mammalian liver , and certain genes may become amplified ; for example , in Drosophila ovarian follicle cells , genes that code for the chorion ...
... cells of a multicellular organism's body . Certain cells may become polyploid , as in the mammalian liver , and certain genes may become amplified ; for example , in Drosophila ovarian follicle cells , genes that code for the chorion ...
Pagina 59
... cells that ultimately differentiate into autonomic nerve ganglia , dermal pigment cells , and other tis- sues . Groups of cells often differentiate and acquire distinctive form in response to INDUCTION by other groups of cells ; for ...
... cells that ultimately differentiate into autonomic nerve ganglia , dermal pigment cells , and other tis- sues . Groups of cells often differentiate and acquire distinctive form in response to INDUCTION by other groups of cells ; for ...
Pagina 428
... cell packing , possibly by increasing adhesion among cells . Another mechanism of morphogenesis is cell death ; for example , the digits of the limbs of amniotes are formed by the death of cells in the embryo's paddle - shaped hand or ...
... cell packing , possibly by increasing adhesion among cells . Another mechanism of morphogenesis is cell death ; for example , the digits of the limbs of amniotes are formed by the death of cells in the embryo's paddle - shaped hand or ...
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