Occurrence of triploid (3n) primary endosperm nucleus is a characteristic feature of
(1) Algae
(2) Gymnosperms
(3) Angiosperms
(4) Bryophytes
Which of the following genera is associated with coralloid roots?
1. | Cycas | 2. | Taxus |
3. | Pinus | 4. | Sequoia |
Match the following selected the correct option.
Column - I | Column - II | ||
A. | Pteris | (i) | Gymnosperm |
B. | Cycas | (ii) | Bryophyte |
C. | Sphagnum | (iii) | Algae |
D. | Sargassum | (iv) | Pteridophyta |
1. A - (iv), B - (ii), C - (i), D - (iii)
2. A - (iv), B - (i), C - (ii), D - (iii)
3. A - (ii), B - (iii), C - (iv), D - (i)
4. A - (i), B - (iv), C - (iii), D - (ii)
Which of the following are homosporous pteridophytes?
I. | Selaginella |
II. | Lycopodium |
III. | Salvinia |
IV. | Equisetum |
1. I and IV only
2. II and III only
3. II and IV only
4. III and IV only
Pick the correct group consisting of all genera exhibiting homospory.
1. | Lycopodium, Psilotum, Selaginella, Equisetum |
2. | Equisetum, Pteris, Salvinia, Psilotum |
3. | Salvinia, Pteris, Lycopodium, Selaginella |
4. | Equisetum, Psilotum, Lycopodium, Pteris |
Which of the following groups of algae produces algin?
1. | Phaeophyceae and Chlorophyceae |
2. | Rhodophyceae and Phaeophyceae |
3. | Chlorophyceae and Rhodophyceae |
4. | Phaeophyceae only |
Match Column - I with Column - II and select the correct option from the codes given below.
Column - I | Column - II | ||
A. | Chlorophyta | (i) | Equisetum |
B. | Lycopsida | (ii) | Chara |
C. | Phaeophyta | (iii) | Selaginella |
D. | Sphenopsida | (iv) | Ectocarpus |
Codes:
1. A - (ii), B - (iii), C - (iv), D - (i)
2. A - (iv), B - (i), C - (ii), D - (iii)
3. A - (ii), B - (iii), C - (i), D - (iv)
4. A - (iv), B - (i), C - (iii), D - (ii)
Which statement is correct regarding mosses?
(1) They have dominant and independent sporophyte.
(2) Their antherozoids require water for fertilization.
(3) Their archegonia produce many eggs.
(4) Their antherozoids are multiflagellated.
Gametophyte and sporophyte are independent of each other in which of the following groups?
1. | Pteridophytes | 2. | Angiosperms |
3. | Gymnosperms | 4. | Bryophytes |
Which of the following is correctly matched without exception in regard to plant classification?
1. |
Family |
- Poaceae - ae |
2. |
Division |
- Pteridophyta - phyta |
3. |
Class |
- Bryopsida - sida |
4. |
Genus |
- Solanum - um |