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Q.

The algal form that is profusely branched and which may reach the height of 100 metres.

A. May vary in colour from olive green to various shades of brown.

B. Usually attached to substratum by a holdfast.

C. Protoplast contain in addition to plastids, a centrally located vacuole and nucleus.

D. Has biflagellated zoospores attached apically.

Select correct option.

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a

Only (A) and (B)

b

Only (A),(B) and (C)

c

Only (B),(C)and (D)

d

All (A),(B),(C) and (D)

answer is B.

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Detailed Solution

Profusely branched algae which reach height of 100mtr is Kelps. Eg. Macrocystis, belonging to Brown algae. Zoospores and gametes in brown algae are pear shaped and have two unequal laterally attached flagella.

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