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For phycomycetes class of fungus, incorr...

For phycomycetes class of fungus, incorrect statement is

A

their mycelium is aseptate and coenocytic

B

the fusion of gametes results in the formation of zygospore.

C

modes of asexual reproduction are motile aplanospores and non-motile zoospores

D

Parasitic fungus Albugo produces white sports on mustard leaves.

Text Solution

AI Generated Solution

The correct Answer is:
To determine the incorrect statement regarding the phycomycetes class of fungi, we can analyze each statement provided in the question. ### Step-by-Step Solution: 1. **Understanding Phycomycetes**: - Phycomycetes, also known as lower fungi, are primarily found in aquatic habitats and decaying organic matter. They thrive in moist and damp environments. 2. **Evaluating the First Statement**: - "Their mycelium is septate and coenocytic." - This statement is **correct**. In phycomycetes, the mycelium can be coenocytic (aseptate) or septate, but they typically exhibit coenocytic characteristics. 3. **Evaluating the Second Statement**: - "The fusion of gametes results in the formation of zygospore." - This statement is **correct**. In phycomycetes, the fusion of gametes leads to the formation of a zygospore. 4. **Evaluating the Third Statement**: - "Modes of asexual reproduction are motile aplanospores and non-motile zoospores." - This statement is **incorrect**. The correct information is that phycomycetes reproduce asexually through motile zoospores and non-motile aplanospores. The terms are reversed in this statement. 5. **Evaluating the Fourth Statement**: - "Parasitic fungus Albugo produces white spots in mustard leaves." - This statement is **correct**. Albugo is known to cause white rust disease in mustard plants, leading to the appearance of white spots. 6. **Conclusion**: - After evaluating all statements, the incorrect statement is the third one regarding the modes of asexual reproduction. ### Final Answer: The incorrect statement is: "Modes of asexual reproduction are motile aplanospores and non-motile zoospores." ---
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