Cocci that form chains as they divide are called

Cocci that form chains as they divide are called

• A. Streptococci
• B. Staphylococci
• C. Diplococci
• D. Micrococci

Answer: (A)

Chains form because these cocci divide in a single plane and remain attached after each division, producing a long line of spheres. That chaining is a hallmark of streptococci, which are known for forming chain-like arrangements. In contrast, staphylococci divide in multiple planes and cluster in grape-like bunches; diplococci stay in pairs after division; and micrococci appear as single cells or in very irregular, small groups. So the chain pattern is the distinguishing feature that points to streptococci.

Chains form because these cocci divide in a single plane and remain attached after each division, producing a long line of spheres. That chaining is a hallmark of streptococci, which are known for forming chain-like arrangements. In contrast, staphylococci divide in multiple planes and cluster in grape-like bunches; diplococci stay in pairs after division; and micrococci appear as single cells or in very irregular, small groups. So the chain pattern is the distinguishing feature that points to streptococci.