<prompt> True about Clostridium tetani isIt is gram positiveSubterminal sporesGrows in aerobic environmentIt is gram negative  <response>: Clostridium tetani is a gram-positive, slender bacillus, though there may be a considerable variation in length. The spores are spherical, terminal and bulging, giving the bacillus the characteristic drumstick appearance. It is an obligatory anaerobe that grows only in the absence of oxygen. Reference: Textbook of Microbiology; Anathanarayan and panikers; 10th edition; Page no: 264 