Choose the correct option.
i. White spots seen on mustard leaves are due to a parasitic fungus.
ii. The network of mycelium is known as hyphae.
iii. Some hyphae are continuous tubes filled with multinucleated cytoplasm and these are called coenocytic hyphae.
iv. Hyphae with septa or cross walls are called aseptate hyphae.

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(ii) and (iv) are correct but (i) and (iii) are incorrect

(ii) and (iv) are incorrect but (i) and (iii) are correct

(i), (iii) & (iv) are correct but (ii) is incorrect

(i) and (ii) are correct but (iii) and (iv) are incorrect

answer is C.

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Detailed Solution

The network of hyphae is known as mycelium.

Hyphae with septa or cross walls are called septate hyphae.

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