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 cone

Question

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 cone (A) 1,2 and 3 are correct (B) 1 and 2 are correct (C) 2 and 4 are correct (D) 1 and 3 are correct

Tardigrade Admin · Accepted Answer

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.

Q. 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 cone

1,2 and 3 are correct

1 and 2 are correct

2 and 4 are correct

1 and 3 are correct

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.

Q. 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 cone