Which one is correct about male and female gametophyte?

1.	In bryophytes and pteridophytes, they have no independent free-living existence.
2.	In bryophytes and angiosperms, they have free-living existence.
3.	In gymnosperms and angiosperms, they have no independent free-living existence.
4.	In bryophytes, pteridophytes and angiosperms, they have free-living existence.

The type of life-cycle in which there is no free-living sporophytes and the dominant, photosynthetic phase in such plants is the free-living gametophyte. We are talking about

1.Haplontic life cycle shown in Volvox and some species of Chlamydomonas.

2.Diplontic life cycle as shown in seed-bearing plants.

3.Haplo-diplontic life cycle as shown in bryophytes and pteridophytes.

<p">4.Haplo-diplontic life cycle as shown in Kelps.

The diploid sporphyte is represented by a dominant, independent, photoshynthetic, vascular plant body. It alternates with multicellular, saprophytic/autotrophic, independent but short-lived haploid gametophyte. This type of pattern is exhibited by

1. Bryophytes (Sphagnum, Polytrichum).

2.Pteridophytes (Selaginella, Lycopodium).

3. Most of the algal genera (Fucus, Chara, Polysiphonia).

4. Seed plants (gymnosperms and antiosperms).

Occurrence of triploid (3n) primary endosperm nucleus is a characteristic feature of

(1) Algae

(2) Gymnosperms

(3) Angiosperms

(4) Bryophytes

The world's tallest (angiosperm) flowering tree is

(1) Sequoia

(2) Eucalyptus

(3) Pinus

(4) Cedrus

Life cycle of Ectocarpus and Fucus respectively are

(1) Haplontic, Diplontic

(2) Diplontic, Haplodiplontic

(3) Haplodiplontic, Diplontic

(4) Haplodiplontic, Haplontic

Double fertilisation is exhibited by

(1) gymnosperms

(2) algae

(3) fungi

(4) angiosperms

Zygotic meiosis is characteristic of

(1) Marchantia

(2) Fucus

(3) Funaria

(4) Chlamydomonas

The life cycle pattern shown in the given diagram is not seen  in:

1. Chlamydomanas

2. Spirogyra

3. Volvox

4. Ectocarpus

Both bryophytes and pteridophytes:

1. are vascular cryptogams

2. have a dominant sporophyte

3. reproduce only sexually

4. are haplo-diplontic