Question

A bacterium with completely non-radioactive DNA was allowed to replicate in a radioactive medium for three generation what % of the bacteria should contain radioactive DNA?

Answer 1

A bacterium with completely non-radioactive DNA was allowed to replicate in radioactive medium for 3 generations percentage of bacteria with radioactive DNA is 100% because in the first generation 25% bacteria will have one strand radioactive but in the second generation only 50% bacteria will have one radioactive strand.