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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Pagina 199
Then the mean of the parents ( the MIDPARENT VALUE ) in the cross AA X A ' A '
is ( 6 + 4 ) / 2 = 5 . This is the mean of the Fı progeny ( AA ' ) , and the F2 progeny
as well ( ( 14 X 6 ) + ( 12 X 5 ) + ( 14 X 4 ) = 5 ) ] . In contrast , if there is ...
Then the mean of the parents ( the MIDPARENT VALUE ) in the cross AA X A ' A '
is ( 6 + 4 ) / 2 = 5 . This is the mean of the Fı progeny ( AA ' ) , and the F2 progeny
as well ( ( 14 X 6 ) + ( 12 X 5 ) + ( 14 X 4 ) = 5 ) ] . In contrast , if there is ...
Pagina 201
variance , and w is mean fitness , the mean will change by an amount per
generation ( Lande 1976a ) . ( This expression , in which dwldź is the slope of the
relation between w and z , assumes that h ' and Vp are constant . ) Under
directional ...
variance , and w is mean fitness , the mean will change by an amount per
generation ( Lande 1976a ) . ( This expression , in which dwldź is the slope of the
relation between w and z , assumes that h ' and Vp are constant . ) Under
directional ...
Pagina 543
FIGURE 1 The normal distribution curve , showing the fraction of the area
embraced by one , two , and three standard deviations ( o ) on either side of the
mean . - 30 - 20 - 0 0 20 30 68 % of area 96 % of area 99 . 7 % of area area
under the ...
FIGURE 1 The normal distribution curve , showing the fraction of the area
embraced by one , two , and three standard deviations ( o ) on either side of the
mean . - 30 - 20 - 0 0 20 30 68 % of area 96 % of area 99 . 7 % of area area
under the ...
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Sommario
CONCEPTIONS AND MISCONCEPTIONS | 7 |
Chapter | 18 |
THE EFFECT OF DENSITY | 24 |
Copyright | |
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adaptive advantage allele frequency America animals appear arise average become behavior biological birds caused Chapter characteristics characters chromosomes common competition condition correlated depends derived determined differentiated direct distribution diversity Drosophila ecological effect environment enzyme equilibrium evidence evolution evolutionary evolved example exist extinction factors families favor females Figure fitness fossil function gene gene flow genetic drift genotypes geographic greater groups growth heterozygotes higher human hybrid important increase individual interactions isolation less linkage loci locus lower major males mammals mating mean mechanisms morphological mutation natural selection occur offspring organisms origin pairs pattern phenotype plants Pleistocene polymorphic population possible predators present probability recombination reduced region relative represent reproductive response sequence similar single sometimes speciation species structure taxa term theory tion trait usually variance variation vary