NEETBotanySexual Reproduction in Flowering Plants
Match List-I with List-II. List-I List-II (A) Filiform apparatus (I) Undergoes syngamy (B) Antipodals (II) Situated at chalazal end (C) Central cell (III) Guides the entry of pollen tube (D) Egg cell (IV) Undergoes triple fusion Choose the correct answer from the options given below:
Options
- A(A) - (III), (B) - (II), (C) - (I), (D) - (IV)
- B(A) - (III), (B) - (II), (C) - (IV), (D) - (I)
- C(A) - (II), (B) - (III), (C) - (IV), (D) - (I)
- D(A) - (I), (B) - (II), (C) - (IV), (D) - (III)
Correct answer
B. (A) - (III), (B) - (II), (C) - (IV), (D) - (I)
Step-by-step solution
In a typical angiosperm embryo sac: The filiform apparatus consists of special cellular thickenings at the micropylar tip of the synergids, which guide the entry of the pollen tube. The antipodals are three cells situated at the chalazal end of the embryo sac. The central cell is the largest cell containing two polar nuclei, which undergo triple fusion with a male gamete to form the primary endosperm nucleus (PEN). The egg cell is the female gamete that undergoes syngamy with the other male gamete to form a zygote.