T2 Phage, also known as bacteriophage T2, refers to a type of virus that specifically infects bacteria, particularly Escherichia coli or E. coli. It is classified as a member of the Myoviridae family and the Caudovirales order. T2 Phage plays a significant role in molecular biology and virology studies, making it a prominent model organism.

T2 Phage possesses a head or capsid that encloses its genetic material, consisting of double-stranded DNA. The head is attached to a long contractile tail, which aids in the attachment and penetration of the phage into the bacterial cell during infection. Upon entry, T2 Phage rapidly releases its DNA into the host cell, allowing it to take over the cell's machinery for its own replication and assembly. As a result, the host cell is ultimately lysed, releasing a new generation of T2 Phage particles.

The unique characteristics and life cycle of T2 Phage have been extensively studied and have contributed significantly to the field of molecular biology. Its ability to infect and replicate within bacteria has provided crucial insights into understanding processes such as viral replication, host-virus interactions, and the genetic basis of virus-host specificity. Moreover, T2 Phage serves as a valuable tool in experimental techniques, including plaque assays, recombinant DNA technology, and the study of bacterial resistance mechanisms. Its use as a model organism has paved the way for numerous breakthroughs in various scientific disciplines.