1. | All pteridophytes exhibit haplo-diplontic pattern. |
2. | Seed bearing plants follow haplontic pattern |
3. | Most algal genera are diplontic |
4. | Most bryophytes do not have haplo-diplontic life cycle. |
Which of the following is without exception in Angiosperms:
1. Presence of vessels
2. Double fertilisation
3. Secondary growth
4. Autotrophic nutrition
Angiosperms have dominated the land flora primarily because of their:
1. Property of producing a large number of seeds
2. Nature of self-pollination
3. Domestication by man
4. Power of adaptability in diverse habitat
Embryo of sunflowers have:
1. Two cotyledons
2. One cotyledons
3. Eight cotyledons
4. Cotyledons absent
In angiosperm, characters of flowers are used in classification because:
1. Characters of flowers are conservative
2. Flowers are large
3. Flowers are attractive
4. None of the above
Consider the following four statements:
(A) | The sporophyte in liverworts is more elaborate than that in mosses |
(B) | Salvinia is heterosporous |
(C) | The life cycle in all seed-bearing plants is diplontic |
(D) | In Pinus male and female cones are borne on different trees |
The two wrong statements together are:
1. Statements (A) and (B)
2. Statements (A) and (C)
3. Statements (A) and (D)
4. Statements (B) and (C)
Male and female gametophytes do not have an independent free-living existence in:
1. Pteridophytes
2. Algae
3. Angiosperms
4. Bryophytes
If the diploid number of a flowering plant is 36. What would be the chromosome number in its endosperm?
1. 36
2. 18
3. 54
4. 72
The embryo sac of an angiosperm is made up of
1. 8 cells
2. 7 cells and 8 nuclei
3. 8 nuclei
4. 7 cells and 7 nuclei