Which one of the following is the correct statement?
1. | Pteridophyte gametophyte has a protonemal and leafy stage |
2. | In gymnosperms, female gametophyte is free-living |
3. | Antheridiophores and protonema are present in pteridophytes |
4. | Origin of seed habit can be traced in pteridophytes |
Mannitol is a sugar alcohol. It is as stored food in:
1. Fucus
2. Gracillaria
3. Chara
4. Porphyra
Mannitol is the stored food in:
1. Chara
2. Porphyra
3. Fucus
4. Gracillaria
Phylogenetic system of classification is based on:
1. evolutionary relationships
2. morphological features
3. chemical constituents
4. floral characters
Which one of the following is a vascular cryptogam?
1. | Equisetum | 2. | Ginkgo |
3. | Marchantia | 4. | Cedrus |
Which one of the following is considered important in the development of seed habit?
1. | Dependent sporophyte | 2. | Heterospory |
3. | Halplontic life cycle | 4. | Free-living gametophyte |