- A Phycomycetes
- B Ascomycetes
- C Basidiomycetes
- D Deuteromycetes
Correct answer: B. Ascomycetes
Explanation: Saccharomyces (yeast) is a unicellular member of class Ascomycetes, the sac fungi that produce ascospores within an ascus.
Concept context
Whittaker's five kingdom system covering Monera, Protista, Fungi, plus viruses, viroids, and lichens. A foundational NEET chapter on how living organisms are grouped.