The methods used by light and electronic my-croscopy made possible to conclude that inthe erythrocytes of the human blood and inanimals the micronuclei were connected withthe cell membrane and localized mainly
To investigate a contribution of O-methylguanineto mutagenesis in mouse cells,we constructed ashuttle vector plasmid,pYZ289,from a part ofpZ189 plasmid and polyoma virus DNA.The plasmidcontains a supF gene as a marker...