ScienceJohn Michels (Journalist) 1950 |
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Стр. 164
... selection is in this case elimination of the mutant and preservation of the orginal type of gene or organ- ism , this form of selection is a conservative force . It has been called by Schmalhausen " stabilizing selec- tion , " because ...
... selection is in this case elimination of the mutant and preservation of the orginal type of gene or organ- ism , this form of selection is a conservative force . It has been called by Schmalhausen " stabilizing selec- tion , " because ...
Стр. 165
... selection . The processes of mutation and natural selection have been described here as though they involved changes of individual genes . This may be strictly true only in some viruses , which have been styled " naked genes " because ...
... selection . The processes of mutation and natural selection have been described here as though they involved changes of individual genes . This may be strictly true only in some viruses , which have been styled " naked genes " because ...
Стр. 166
... selection in- volves a unique kind of interaction between the organ- ism and the environment , the outcome of which ... selection favoring A during one season may be undone during the next season . But when many genes have mutated , and ...
... selection in- volves a unique kind of interaction between the organ- ism and the environment , the outcome of which ... selection favoring A during one season may be undone during the next season . But when many genes have mutated , and ...
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AAAS absorption activity albumin Amer American animals applied Association atherosclerosis atomic awarded Beer-Lambert laws beta particles bevatron biol biological blood cells chairman Chem chemical chemistry Chicago cholesterol cloud chamber College Committee compounds concentration curves cytoplasm Department director effect electron emulsion energy enzyme experimental experiments fellowships field genes genetics growth Health indicate injected Institute internal wave investigation Laboratory Lambert's law larvae layer material measurements Medical Medicine meeting ment mesons metabolism method mice molecular molecules National nuclear nuclei nucleic acid observed obtained organic paper particles penicillin phosphorus Phys physical plants plates present president problems produced professor protein prothrombin protons radiation rats reaction recent reported rhodopsin sample School Science scientific scientists serum session Society soil solution specific temperature theory tion tissue Univer University values versity vitamin volume Washington WNCD York York City