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Q.

What of the following is / are correct about Cycas?

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a

Cycas has characteristic branched stems and pinnate leaves.

b

It is dioecious plant, where male cones and megasporophylls bear on different trees

c

Mycorrhizal associations are commonly found in the roots of Cycas.

d

It has megasporangia without integuments

answer is B.

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Detailed Solution

Roots in some genera have fungal association in the form of mycorrhiza (Pinus), while in some others (Cycas) small specialised roots called coralloid roots are associated with N2- fixing cyanobacteria. The stems are unbranched (Cycas) or branched (Pinus, Cedrus). It has megasporangia with integuments.

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What of the following is / are correct about Cycas?