question_answer

Escherichia coli has the following combination of characters                    [AFMC 1993]

A)            Rod shaped, \[1-3\,\mu m\] long, gram negative

B)            Rod shaped, \[1-3\,\mu m\] long, gram positive

C)            Spiral, \[1-3\,\mu m\] long, gram negative

D)            Spiral, \[1-3\,\mu m\] long, gram positive