Actions of Radiations on Living Cells

a-particle a-rays aberrations absorption actions of radiation allelomorph anaphase associated volume asymmetrical bacteria breakage ends calculation Catcheside cause cells centromere Chapter chemical change chromatid breaks chromo chromosome structural changes deduce deficiencies deletions densely ionizing density dicentric dicentric chromosomes different radiations division dominant lethals efficiencies electron energy dissipation exchanges experimental experiments fraction genetical given dose heterochromatin inactivation dose increase intensity interchanges intrachanges ion-density ionic yield ionizing radiations ions irradiated isochromatid breaks less lethal mutation metaphase method micron microspores mitosis molecule mutation neutrons nucleus number of ionizations obtained occur organisms phage pollen tubes primary breaks probability prophase proportion protein protons ratio reaction recessive lethals restitution roentgens sex-linked single ionizing particle solute sperm survival curve Table target diameter target theory tf-rays Thoday Timofeeff-Ressovsky tion tissue tobacco mosaic virus total number Tradescantia Tradescantia microspores ultra-violet light values viable virus viruses wave-length X chromosome X-rays y-rays