GENETIC CONTROL OF MUTATION RATES IN BACTERIOPHAGE T4

The following two articles are concerned with the genetic control of mutation rate. The first describes the anti-mutagenic effect of some DNA polymerase mutations on phage T4 mutation rates, and discusses the implications they hold for the mechanism of action of DNA polymerase. The second compares spontaneous mutation rates in different species, and considers the biological factors which may determine these rates. © 1969 Nature Publishing Group.