Advances in Radiation Biology, Volume 4 provides wide-ranging analyses of progress in the various phases of radiation biology. This book discusses the repair processes for photochemical damage in mammalian cells; S-phase recovery or postreplication repair; enzymes involved in the repair of DNA; and reinsertion of nucleotides. The mutation induction in mice; dominant visible mutations; experimental radiation carcinogenesis; and dose-effect relationships are also deliberated. This text likewise covers the toxicology of plutonium; effects of ionizing radiation on terrestrial plant communities; and radiation sensitivities of plant communities. This publication is beneficial to radiation biologists, as well as students and researchers conducting work on radiobiology.