Development of the zygotes into young embryo takes within the female gametophytes in

1. Adiantum.

2. Selaginella.

3. Riccia.

4. Batrachospermum.

Mannitol is a sugar alcohol. It is as stored food in:

1.  Fucus
2.  Gracillaria
3.  Chara
4.  Porphyra

Study the figure and find out incorrect statement.

1. Contains laminarin or mannitol as reserve food.

2. Life-cycle is diplontic.

3. Union of gamete may take place in water or within the oogonium.

4. Gametes with two apically inserted flagella.

A Prothallus is

1. A structure in pteridophytes formed before the thallus develops

2. A sporophytic free living structure formed in pteridophytes

3. A gametophyte free living structure formed in pteridophytes

4. A primitive structure formed after fertilization in pteridophytes

Mannitol is the stored food in:
1. Chara
2. Porphyra
3. Fucus
4. Gracillaria

Pinus seeds cannot germinate and establish without fungal association. This is because:

1. its seeds contain inhibitors that prevent germination.

2. its embryo is immature.

3. it has an obligate association with mycorrhizae.

4. it has a very hard seed coat.

From an evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:

Choose the incorrect match from following:-

1.  Cycas-branched stem.

2.  Salvinia-heterosporous sporophyte.

3.  Marchantia-Elaters.

4.  Chlorella-used by space travellers.

Assertion: Seeds are formed in Gymnosperms.

Reason: Female gametophyte is retained within megasporangium in Gymnosperms.