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
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