| 释义 |
mutagen Biol.|ˈmjuːtədʒən|
[f. mutation + -gen.]
An agent that causes mutation.
1946Proc. R. Soc. Edin. B. LXII. 220 In unpublished experiments with chemical mutagens, a significant change in the rate of induced lethals was recorded. 1952New Biol. XII. 86 Certain chemical substances, or penetrating radiation such as ultra-violet or X-rays, may increase the mutation rate considerably. Those agents, called ‘mutagens’, are at present being intensively studied. 1971J. Z. Young Introd. Study Man xxviii. 393 Another implication of the randomness of the effects of mutagens is that no amount of them is too small to be biologically irrelevant. |