Study the following statements and choose the incorrect statement:

(i) Prior to the work of Avery, MacLeod and McCarty, the genetic material was thought to be a protein. They concluded that DNA is the hereditary material.

(ii) Herchcy and Chase worked to discover whether genetic material was protein or DNA.

(iii) The unequivocal proof that DNA is the genetic material came from the experiments of Alfred Hershey and Martha Chase (1952).

(iv) Hershcy and Chase worked with viruses that infect bacteria called bacteriophage.

(v) Griffith was concluded that DNA transferred from dead to living bacteria.