How do a head infect the bacterialphage?

A bacteriophage infects a bacterium by first attaching to the bacterial surface through specific receptor sites. Once attached, the phage injects its genetic material (DNA or RNA) into the host cell, often using a specialized structure called a tail. This genetic material then hijacks the bacterial machinery to replicate the phage's components, ultimately leading to the assembly of new phage particles and the lysis (destruction) of the host cell to release them.