Microbiology A pus culture on chocolate agar shows gram-negative cocci most likely organism is A Hemophilus ducreyi B Nisseria gonorrhoeae C Streptococcus pyogenes D Streptococcus pneumoniae 💡 Explanation A pus culture on chocolate agar shows gram-negative cocci most likely organism is ✓ Correct Answer: B. Nisseria gonorrhoeae