Q34 / 180 · NEET 2020 (Phase 1) · Botany

The plant parts which consist of two generations one within the other:

(a) Pollen grains inside the anther
(b) Germinated pollen grain with two male gametes
(c) Seed inside the fruit
(d) Embryo sac inside the ovule

  • A
    (a), (b) and (c)
  • B
    (c) and (d)
  • Correct answer
    C
    (a) and (d)
  • D
    (a) only

Solution

A typical anther is bilobed. The two anther lobes are separated by a deep groove in front and are attached by a band of sterile vasculature tissue called connective. Each anther is a four sided tetragonal structure consisting of four microsporangia located at corners, two in each lobe. Hence, a mature anther is tetrasporangiate. Microsporangia form pollen sacs which on maturity become filled with pollen grains.

Embryo sac: It is also called as the female gametophyte and is located in the nucellus. An ovule generally has a single embryo sac formed from a megaspore.

Hence, the correct answer is option: 'C'.

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