|Genetic study, consisting of cytogenetic research
and molecular genetic research, is largely carried out by the Department
Individual radiation doses are assessed by evaluation of chromosome
aberration frequency in the blood cells of A-bomb survivors. Radiation
doses can also be estimated with special techniques that measure
trace amounts of radicals that remain in the teeth of A-bomb survivors.
Molecular Genetic Research
By evaluating DNA from parents and children, studies are carried
out to determine whether de novo mutation rates are increased among
the children of A-bomb survivors. Efforts are also being made to
accurately detect radiation-induced mutation rates using mouse models.
Studies have been initiated to examine genomic instability (marked
by high-frequency genome-wide changes) and genetic effects on cancer
(association between radiation exposure and individual genetic characteristics).