- Insertional inactivation allows for direct identification of recombinant colonies, as the disrupted gene leads to observable changes (e.g., loss of color or enzyme activity).
- It avoids the use of antibiotics, promoting biosafety.
Four students of class XII are given a problem to solve independently. Their respective chances of solving the problem are: \[ \frac{1}{2},\quad \frac{1}{3},\quad \frac{2}{3},\quad \frac{1}{5} \] Find the probability that at most one of them will solve the problem.