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Beadlike chains of cocci formed after cell division along a single axis are called:

  • A. diplococci
  • B. streptococci
  • C. tetrads
  • D. sarcinae
Correct Answer: B

Rationale: The correct answer is B: streptococci. This term refers to beadlike chains of cocci formed after cell division along a single axis. "Diplococci" (A) are pairs of cocci, "tetrads" (C) are groups of four cocci, and "sarcinae" (D) are cube-like groups of eight cocci. Streptococci is the most appropriate term for describing the specific arrangement mentioned in the question.