Question:
Which one has no known sexual stage in its life cycle ?
Which one has no known sexual stage in its life cycle ?
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This genus is traditionally grouped under Fungi Imperfecti because only its conidial stage is known.
Updated On: Jul 4, 2026
- Parmelia
- Cercospora
- Neurospora
- Taphrina
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The Correct Option is B
Solution and Explanation
Step 1: Parmelia is a lichen-forming ascomycete fungus that produces sexual fruiting bodies (apothecia). Neurospora is a classic ascomycete with a well characterised sexual cycle used widely in genetics research. Taphrina is an ascomycete that produces asci directly on the host surface as part of its sexual reproduction.
Step 2: Cercospora, in contrast, is traditionally classified as a Deuteromycete (Fungi Imperfecti) because only its asexual, conidial (imperfect) stage has been observed, no sexual stage has been documented for it in classical taxonomy.
Step 3: So the fungus without a known sexual stage among these options is Cercospora.
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