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. |
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Risultati 1-3 di 69
Pagina 121
A , A , A ; A2 A . AZ FIGURE 2 Two pedigrees showing inbreeding due to ( A ) sib
mating and ( B ) parent - offspring mating . Squares represent males , circles
females . Copies of an A , allele , Ai , are traced through three generations .
A , A , A ; A2 A . AZ FIGURE 2 Two pedigrees showing inbreeding due to ( A ) sib
mating and ( B ) parent - offspring mating . Squares represent males , circles
females . Copies of an A , allele , Ai , are traced through three generations .
Pagina 146
( From Selander 1982 , after Langley and Fitch 1974 ) Nucleotide substitutions 25
50 75 Millions of years ago 100 125 NONRANDOM MATING BASED ON
PHENOTYPE This chapter opened with a discussion of deviations from random
mating ...
( From Selander 1982 , after Langley and Fitch 1974 ) Nucleotide substitutions 25
50 75 Millions of years ago 100 125 NONRANDOM MATING BASED ON
PHENOTYPE This chapter opened with a discussion of deviations from random
mating ...
Pagina 243
A gene that increases discrimination in mating will increase and accomplish
cessation of interbreeding ( separation ) if the fitness of the hybrid is low and the
initial frequency of errors in mating is also low . " Flow " is the level of gene flow ...
A gene that increases discrimination in mating will increase and accomplish
cessation of interbreeding ( separation ) if the fitness of the hybrid is low and the
initial frequency of errors in mating is also low . " Flow " is the level of gene flow ...
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Sommario
CONCEPTIONS AND MISCONCEPTIONS | 7 |
ADAPTATION AND ENVIRONMENT | 19 |
COMPLEX INTERACTIONS AMONG SPECIES | 34 |
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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