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) only
- B(a), (b) and (c)
- C(c) and (d)
- D(a) and (d)
Solution & Step-by-step Explanation
Pollen grains (gametophyte) inside the anther (sporophyte): Two generations.
Embryo sac (gametophyte) inside the ovule (sporophyte): Two generations.
In (b), the germinated pollen is just the gametophyte.
In (c), both seed and fruit are sporophytic tissues (though seed contains the embryo of the next sporophytic generation).
Embryo sac (gametophyte) inside the ovule (sporophyte): Two generations.
In (b), the germinated pollen is just the gametophyte.
In (c), both seed and fruit are sporophytic tissues (though seed contains the embryo of the next sporophytic generation).