Q. No.Cycas and Adiantum resemble each other in having
(1) seeds
(2) motile sperms
(3) cambium
(4) vessels
Which one of the following is a correct statement?
| 1. | Pteridophyte gametophyte has a protonemal and leafy stage |
| 2. | In gymnosperms female gametophyte is free-living |
| 3. | Antheridiophores and archegoniophores are present in pteridophytes |
| 4. | Origin of seed habit can be traced in pteridophytes |
Gymnosperms are also called soft wood spermatophytes because they lack
(1) cambium
(2) phloem fibres
(3) thick-walled tracheids
(4) xylem fibres
Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tends to be
1. larger but to have smaller sex organs
2. larger and to have large sex organs
3. smaller and to have smaller sex organs
4. smaller but to have larger sex organs
The gametophyte is not an independent, free living generation in
(1) Adiantum
(2) Marchantia
(3) Pinus
(4) Polytrichum
A prokaryotic autotrophic nitrogen fixing symbiont is found in
(1) Cycas
(2) Cicer
(3) Pisum
(4) Alnus
Male and female gametophytes are independent and free-living in
(1) mustard
(2) castor
(3) Pinus
(4) Sphagnum
Which one of the following has haplontic life cycle?
(1) Funaria
(2) Polytrichum
(3) Ustilago
(4) Wheat
Phylogenetic system of classification is based on
1. evolutionary relationships
2. morphological features
3. chemical constituents
4. floral characters
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