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 95
... chromosome and Pm ( plum eye color ) on the other . These chromosomes also carry inversions that prevent crossing over . The crosses shown produce wild - type flies ( i.e. , those without the Cy , L , or Pm markers ) that are homozygous ...
... chromosome and Pm ( plum eye color ) on the other . These chromosomes also carry inversions that prevent crossing over . The crosses shown produce wild - type flies ( i.e. , those without the Cy , L , or Pm markers ) that are homozygous ...
Pagina 114
... chromosomes ( ANEUPLOIDY ) or for portions of chromosomes ( Stebbins 1950 , Grant 1981 ) . Mispairing of chromosomes in meiosis sometimes occurs even if the chromosomes do not differ visibly under the microscope , but it appears likely ...
... chromosomes ( ANEUPLOIDY ) or for portions of chromosomes ( Stebbins 1950 , Grant 1981 ) . Mispairing of chromosomes in meiosis sometimes occurs even if the chromosomes do not differ visibly under the microscope , but it appears likely ...
Pagina 467
... chromosomes ( Dover 1982 ) . Both unequal crossing over and gene conversion contribute to concerted evolution . For example , the nucleotide sequence is homogeneous among rRNA genes in Drosophila melanogaster , but the number of copies ...
... chromosomes ( Dover 1982 ) . Both unequal crossing over and gene conversion contribute to concerted evolution . For example , the nucleotide sequence is homogeneous among rRNA genes in Drosophila melanogaster , but the number of copies ...
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