ABSTRACT
The fact that X-rays and radium produce permanent changes in the mechanism of heredity (originally observed by Mavor (1) for non-disjunction and by Muller(2) for mutations) has been widely confirmed by many workers(3). Apart from these radiations no other agent has been found to effect heredity similarly, except for the claim made by Harrison and Garrett (4) that feeding the larval of several species of Lepidoptera on metallic salts results in melanotic mutations.
Copyright © 1930 The Company of Biologists Ltd.
1930
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