Which type of bacteria is known for forming chains resembling strings of beads?

Streptococci are a type of bacteria characterized by their unique arrangement, which forms chains resembling strings of beads. This clustering occurs when the bacteria divide in one plane and remain connected after cell division. Streptococci are spherical in shape (cocci) and can be responsible for various infections, including strep throat and other more serious illnesses. Their arrangement helps to differentiate them from other types of bacteria, such as staphylococci, which form clusters, or diplococci, which occur in pairs. Bacilli, on the other hand, are rod-shaped bacteria and do not form chains like streptococci. Understanding these arrangements is important in microbiology and helps in the identification and classification of bacteria in clinical settings.