Viruses – Section 2

1. The most complex type of bacterial viruses having hexagonal head, a rigid tail with a contractile sheath…

Viruses – Section 1

1. Which of the following disinfectant is effective against viruses? A. Hydrogen peroxide B. Hypochlorite C. Formaldehyde D.…

Protozon – Section 1

1. Holozoic nutrition is characterized by A. phagocytosis of solid nutrients and subsequent formation of phagocytic vacuoles B.…

Brucella – Section 1

1. Which of the following can be identified by the milk ring test? A. Brucellosis B. Salmonellosis C.…

Clostridium – Section 1

1. Which of the following types of Clostridium perfringens produces alpha toxin most abundantly? A. Type A B.…

Streptococcus – Section 1

1. The bacteria involved in the production of dental caries is/are A. Streptococcus mutans B. S sanguis C. Both…