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. |
Which one of the following is monoecious?
1. Cycas
2. Pinus
3. Date palm
4. Marchantia
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 pairs is wrongly matched?
1. Salvinia - Prothallus
2. Viroids – RNA
3. Mustard-Synergids
4. Ginkgo-Archegonia
Given are the following five statements (I - V) for your consideration:
I: | In Equisetum, the female gametophyte is retained on the parent sporophyte |
II: | In Ginkgo, male gametophyte is not independent |
III: | The sporophyte in Marchantia is more developed than that in Polytrichum |
IV: | Sexual reproduction in Volvox is isogamous |
V: | The spores of slime moulds lack cell walls |
How many of the above statements is/are correct?
1. | Three | 2. | Four |
3. | One | 4. | Two |
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 |