Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R):
Assertion (A) : Deuteromycetes are known as 'Fungi Imperfecti'.
Reason (R) : In 'Deuteromycetes' only the asexual phase is known.
In light of the above statements, choose the correct answer from the options given below:
नीचे दो कथन दिए गए हैं, एक को अभिकथन (A) और दूसरे को कारण (R) के रूप में लेबल किया गया है:
अभिकथन (A) : ड्यूटेरोमाईसीट्स (Deuteromycetes) को 'कवक अपूर्ण' (Fungi Imperfecti) के रूप में जाना जाता है।
कारण (R) : 'ड्यूटेरोमाईसीट्स' में केवल अलैंगिक प्रावस्था (asexual phase) ही ज्ञात है।
उपरोक्त कथनों के आलोक में, नीचे दिए गए विकल्पों में से सही उत्तर चुनिए:
Deuteromycota / Fungi Imperfecti:
- Assertion (A) is TRUE: In mycological classification, Deuteromycetes (Deuteromycotina) are conventionally designated as Fungi Imperfecti.
- Reason (R) is TRUE and correctly explains (A): In mycology, the sexual stage (meiotic reproduction) is termed the teleomorph (perfect state), whereas the asexual conidial stage is termed the anamorph (imperfect state). Deuteromycetes are classified as 'imperfect' precisely because only their asexual / anamorphic phase has been observed in nature, with no recognized sexual / teleomorphic stage. When a sexual stage is discovered, the fungus is reclassified into Ascomycota or Basidiomycota.
Therefore, both (A) and (R) are true and (R) is the correct explanation of (A).
Correct Answer: Option 1.
विस्तृत व्याख्या:
Deuteromycota / Fungi Imperfecti (ड्यूटेरोमाईकोटा - अपूर्ण कवक):
- Assertion (A) is TRUE: In mycological classification, Deuteromycetes (Deuteromycotina) are conventionally designated as Fungi Imperfecti (अपूर्ण कवक).
- Reason (R) is TRUE and correctly explains (A): In mycology, the sexual stage (meiotic reproduction) is termed the teleomorph (perfect state), whereas the asexual conidial stage is termed the anamorph (imperfect state). Deuteromycetes are classified as 'imperfect' precisely because only their asexual / anamorphic phase has been observed in nature, with no recognized sexual / teleomorphic stage. When a sexual stage is discovered, the fungus is reclassified into Ascomycota or Basidiomycota.
Therefore, both (A) and (R) are true and (R) is the correct explanation of (A).
Correct Answer: Option 1.
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