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 458
... copies may be inserted with it elsewhere in the genome . ( If insertion does not occur , one copy of the transposable element has been deleted from the genome . ) Sequences transported this way are often many thousands of base pairs ...
... copies may be inserted with it elsewhere in the genome . ( If insertion does not occur , one copy of the transposable element has been deleted from the genome . ) Sequences transported this way are often many thousands of base pairs ...
Pagina 460
... copies in a gene family have a substantial effect on fitness simply because of total DNA content . Rather , amplification of the number of copies is likely to affect fitness because of variation in the quantity of the specific gene ...
... copies in a gene family have a substantial effect on fitness simply because of total DNA content . Rather , amplification of the number of copies is likely to affect fitness because of variation in the quantity of the specific gene ...
Pagina 465
... copies of a transposable element have the identical nucleotide sequence , assuming that the excision rate is high , so that the average number of copies per genome , n , is low . As transposable elements turn over by transposition and ...
... copies of a transposable element have the identical nucleotide sequence , assuming that the excision rate is high , so that the average number of copies per genome , n , is low . As transposable elements turn over by transposition and ...
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adaptive adaptive radiation allele frequency allozyme Amer amino acid ancestor animals average behavior biological birds bristle number caused cells Chapter characters chromosome cladistic coefficient coevolution competition copies correlated deleterious developmental differentiation distribution divergence Dobzhansky Drosophila melanogaster ecological effect environment environmental enzyme equilibrium evidence evolutionary change evolved example extinction rate factors favor females Figure fitness fossil record function Futuyma gametes gene conversion gene flow gene frequencies genetic drift genetic variation genome genotypes geographic groups habitats heritability heterozygotes heterozygous higher taxa homozygotes homozygous host human hybrid inbreeding increase individual insects interactions Lewontin linkage disequilibrium loci locus males mammals mating mechanisms molecular morphological mutation natural selection nucleotide occur offspring organisms pairs parasites pattern phenotype phylogenetic phylogeny plants polymorphism predators prey proteins pseudogenes random recombination relative reproductive isolation sequence sexual similar speciation structure survival sympatric taxon theory tion trait transposable elements variable variance