ScienceJohn Michels (Journalist) 1950 |
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Стр. 163
... genes perform . Just what the chemical processes are whereby a copy of a gene appears next to it is unknown . It is ... genes . ( 2 ) Changes that permit self - reproduction to occur , but that are not incorporated in the reproduction ...
... genes perform . Just what the chemical processes are whereby a copy of a gene appears next to it is unknown . It is ... genes . ( 2 ) Changes that permit self - reproduction to occur , but that are not incorporated in the reproduction ...
Стр. 164
... genes . Such changes are permanent and stable , in the same sense in which the ancestral gene structure was called stable . These are the muta- tions of genetics . Several environmental agents that speed up the mutation process are ...
... genes . Such changes are permanent and stable , in the same sense in which the ancestral gene structure was called stable . These are the muta- tions of genetics . Several environmental agents that speed up the mutation process are ...
Стр. 165
... genes . Estimates of the numbers of gene loci in higher organisms are of the order of thousands or tens of thousands . Most or all of these loci change from time to time by mutation , and are represented in popu- lations of a species by ...
... genes . Estimates of the numbers of gene loci in higher organisms are of the order of thousands or tens of thousands . Most or all of these loci change from time to time by mutation , and are represented in popu- lations of a species by ...
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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