0 having the ability to cause a permanent change in an organism's genes --
1 having the ability to cause a permanent change in an organism's genes --
I am thinking in particular of carcinogenic, mutagenic or toxic substances that are known to be harmful.
These oils contain certain quantities of polycyclic aromatic hydrocarbons, which are classified as carcinogenic, mutagenic and reprotoxic substances, as well as persistent organic pollutants.
Other than tests for various genotoxic endpoints, including mutagenic and related responses, there has not been cross-agency acceptance of tests based upon in vitro and lower life forms.
Thus, our data suggest that the two genotypes may differ in their mutation rates, but provide no evidence that cryopreservation or storage of embryos is mutagenic.
Such resistance functions inhibit the uptake of drugs, inactivate the drugs before their interaction with cellular targets or repair lesions caused by the toxic or mutagenic effects of the drugs.
A number of studies have shown that interactions between mutagenic chemicals and trematode infections can increase the risk of tumour development.
Before cryopreserved embryos can be used for such studies, it is first necessary to show that cryopreservation is not mutagenic.
This agent is a well-known carcinogen with conflicting indications of its mutagenic activity.
