During infection of E. coli cells by bacteriophage T2 ,
(a) proteins are the only phage components that actually enter the infected cell.
(b) both proteins and nucleic acids enter the cell.
(c) only proteins from the infecting phage can also be detected in progeny phage.
(d) only nucleic acids enter the cell.

Dear student,
During infection of E. coli cells by bacteriophage T2, only nucleic acids enter the cell, whereas the proteins are left on the outer surface of the bacteria.
The protein surface helps the bacteriophage to attach to the surface of E-coli.
The Nucleic acid part enters and infect the E-coli and takes over the machinery of bacteria and make its own copies
The correct option is d
Regards