Evolutionary BiologyOxford University Press, Incorporated, 1979 - 565 pagine Futuyma (ecology and evolution, SUNY Stony Brook) covers such subject areas as phylogeny, paleobiology, genetic mechanisms of change and speciation, character evolution, the theory of processes and macroevolution, and new molecular perspectives. Numerous line drawings, charts, diagrams, and maps are provided. Annotation copyrighted by Book News, Inc., Portland, OR |
Dall'interno del libro
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Pagina 36
... amino acid is specified by a triplet of DNA nucleotides , so a polypeptide 500 amino acids long is programmed by a gene 1500 nucleotide pairs long . PROTEIN SYNTHESIS AND THE GENETIC CODE The DNA is not directly translated into ...
... amino acid is specified by a triplet of DNA nucleotides , so a polypeptide 500 amino acids long is programmed by a gene 1500 nucleotide pairs long . PROTEIN SYNTHESIS AND THE GENETIC CODE The DNA is not directly translated into ...
Pagina 38
... amino acid of a polypeptide , so it may have no phenotypic effect . As far as is known , the genetic code is universal ; triplets specify the same amino acids in all organisms , as one might expect if all living things stem from a ...
... amino acid of a polypeptide , so it may have no phenotypic effect . As far as is known , the genetic code is universal ; triplets specify the same amino acids in all organisms , as one might expect if all living things stem from a ...
Pagina 239
... amino acid sequences and thus do not affect the phenotype . More drastic changes in amino acid sequences are caused by frame- shift mutations ( Figure 7 ) . Because the RNA sequence is translated into an amino acid sequence by triplets ...
... amino acid sequences and thus do not affect the phenotype . More drastic changes in amino acid sequences are caused by frame- shift mutations ( Figure 7 ) . Because the RNA sequence is translated into an amino acid sequence by triplets ...
Sommario
A Synopsis of Evolutionary Theory | 19 |
Heredity and Development | 33 |
The Ecological Context of Evolutionary Change | 51 |
Copyright | |
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AA AA AA adaptive adaptive radiation advantageous alleles ancestor arise artificial selection average become behavior biological birds bristle number cent Chapter character characteristics chromosome coefficient complex correlated deleterious depends developmental differentiation distribution diversity Dobzhansky dominant Drosophila ecological effect environment environmental enzyme epistasis epistatic equilibrium evidence evolutionary change evolved example extinction factors females Figure fitness flies fossil record function gametes gene flow gene frequency genetic change genetic drift genetic variation genome genotypes geographic habitats heterozygotes heterozygous homozygotes homozygous host human hybrid inbreeding increase individuals insects interactions less Lewontin linkage disequilibrium loci locus major males mammals mating Mayr mechanisms morphological mutation rates natural selection niche number of species occur offspring organisms overdominance patterns phenotypic phylogenetic plants pollen polymorphic population predators probability protein random rate of evolution recombination reproductive isolation response sexual similar single speciation structure survival sympatric theory tion traits variance vary