Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Pollen tube of Cycos acts (1) as an agent for carrying male gamete to the egg (2) as a haustorium (3) as endosperm (4) as female coneA) 1,2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: B
Solution :
In Cycas, fertilization takes place by siphonogamy (spermatozoids being carried by pollen tube) and zooidogamy. Pollen tube also absorbs nutrients from nucellus, in this way, it also acts as a haustorium.
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