A) small, biciliate and circular
B) small, uniciliate and circular
C) large, biciliate and reniform
D) large, multiciliated and top-shaped
Correct Answer: D
Solution :
In Cycas, a fully developed male gametophyte consists of a disorganised prothallial cell, stalk cell, tube nucleus and 2 male gametes. Each male gamete appears large, top-shaped with 5-6 spiral bands of cilia (i.e. multiciliated). The size of male gamete in Cycas varies from \[180-210\,\mu m\](largest, \[400<\,<m\]reported from Chigua, a cycade).
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