Multiple choice

Which of the following bacteriophages infects the bacterial species Streptococcus pyogenes and is capable of transforming a harmless bacteria into a virulent bacteria?

  1. T2 phage

  2. T7 phage

  3. T12 phage

  4. T4 phage

  5. P1 phage
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bacteriophage T12 is a bacteriophage that infects the bacterial species Streptococcus pyogenes and converts a harmless strain of bacteria into a virulent strain. It carries the speA gene which codes for erythrogenic toxin A. speA is also known as streptococcal pyrogenic exotoxin A, scarlet fever toxin A, or even scarlatinal toxin.

Keep practicing — related questions