Read the following five statements (I - V) and answer as asked next to them.
I. | In Equisetum, the female gametophyte is retained on the parent sporophyte |
II. | In Ginkgo, male gametophyte is not independent |
III. | The sporophyte in Riccia is more developed than that in Polytrichum |
IV. | Sexual reproduction in Volvox is isogamous |
V. | The spores of slime molds lack cell walls |
How many of the above statements are correct?
1. Three | 2. Four |
3. One | 4. Two |
Which one of the following pairs is wrongly matched?
1. Salvinia - Prothallus
2. Viroids – RNA
3. Mustard-Synergids
4. Ginkgo-Archegonia
Examine the figures A, B, C and D. In which one of the four options all the items, A, B, C and D are correct?
Options :
A | B | C | D | |
1. | Equisetum | Ginkgo | Selaginella | Lycopodium |
2. | Selaginella | Equisetum | Salvinia | Ginkgo |
3. | Funaria | Adiantum | Salvinia | Riccia |
4. | Chara | Marchantia | Fucus | Pinus |
Which one of the following is monoecious?
1. Cycas
2. Pinus
3. Date palm
4. Marchantia
Examine the figure given below and select the right option giving all the four parts (A, B, C and D) correctly identified:
A | B | C | D | |
1. | Antheridiophore | Male thallus | Globule | Roots |
2. | Archegoniophore | Female thallus | Gemma cup | Rhizoids |
3. | Archegoniophore | Female thallus | Bud | Foot |
4. | Seta | Sporophyte | Protonema | Rhizoids |
Selaginella and Salvinia are considered to represent a significant step towards the evolution of seed habit because:
1. | Embryo develops in female gametophyte which is retained on parent sporophyte. |
2. | Female gametophyte is free and gets dispersed like seeds. |
3. | Female gametophyte lacks archegonia. |
4. | Megaspores possess endosperm and embryo surrounded by a seed coat. |
1. | Sphagnum | 2. | Salvinia |
3. | Marchantia | 4. | Funaria |
In a moss the sporophyte:
1. | is partially parasitic on the gametophyte |
2. | produces gametes that give rise to the gametophyte |
3. | arises from a spore produced from the gametophyte |
4. | manufactures food for itself, as well as for the gametophyte |