Q. No.Gemma is
1. Green unicellular, asexual bud
2. Green, multicellular, asexual bud
3. Both 1 and 2
4. Green, Filamentous, asexual bud.
1. Green unicellular, asexual bud
2. Green, multicellular, asexual bud
3. Both 1 and 2
4. Green, Filamentous, asexual bud.
Find out incorrect match.
|
Character |
Liverworts |
Mosses |
|
|
1 |
Rhizoids |
Unicellular |
Multicellular |
|
2 |
Zygote |
Immediate meiosis |
Meiosis delayed |
|
3 |
Fertilisation |
with the help of water |
with the help of water |
|
4 |
Dominant Stage |
Haploid |
Haploid |
Budding in mosses is mode of vegetative reproduction it takes place in?
1. Primary protonema
2. Secondary protonema
3. Both 1. and 2.
4. Leafy stage.
Although pteridophytes are first land vascular plant but its distribution is restricted to few geographical areas because?
| 1. | Restricted requirement for growth of gametophyte. |
| 2. | Need of H2O for fertilization |
| 3. | Dominant sporophytic phase |
| 4. | Both 1 and 2 |
Study the diagram given below and find out incorrect statement related to this
1. It has macrophylls
2. It is heterosporous
3. Its gametophyte is independent
4. It lacks vascular tissue
Which of the following feature in pteridophyte considered as an important step in evolution.
1. Presence of cone
2. Presence of two type of leaf
3. Heterospory
4. Seed habit
Which of the following statement is wrong for gymnosperm?
| 1. | They are homosporous. |
| 2. | The multicellular female gametophyte is retained within megasporangium. |
| 3. | Pollen grain is released from the microsporangium and carried by wind, which come in contact with ovules. |
| 4. | The male and female gametophytes do not have an independent free living existence. |
Which of the following statement is true for Pinus?
| 1. | Roots have fungal association in the form of mycorrhiza |
| 2. | Male and female strobili borne on same tree |
| 3. | Both 1 and 2 |
| 4. | Roots are called coralloid roots |
Mark the wrong statement about Cycas
1. Stem unbranched
2. Pinnate leaves persist for few years
3. Roots associated with cyanobacteria
4. Male and female reproductive structure on same plant
Which among the following pteridophytes has compact structure strobili formed by sporophylls as well as it shows heterospory?
1. [A]
2. [B]
3. [C]
4. All the above
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