Read the following statements 1-5 and answer the question which follows them:
1. In liverworts, mosses and ferns gametophytes are free living.
2. Gymnosperms and some ferns are heterosporous.
3. Sexual reproduction in Fucus and Volvox is oogamous.
4. The sporophyte in liverworts is more elaborate than that in mosses.
5. Both Pinus and Marchantia are dioecious.
Which of the above statements are correct?
Read the following statements 1-5 and answer the question which follows them:
1. In liverworts, mosses and ferns gametophytes are free living.
2. Gymnosperms and some ferns are heterosporous.
3. Sexual reproduction in Fucus and Volvox is oogamous.
4. The sporophyte in liverworts is more elaborate than that in mosses.
5. Both Pinus and Marchantia are dioecious.
Which of the above statements are correct?
The correct option is B 1, 2 and 3
Statements 1, 2 and 3 are correct.
In liverworts and mosses (Bryophytes) and ferns (Pteridophytes) the haploid gametophytic plant body is free living.
Gymnosperms and some pteridophytes such as Selaginella and Salvinia produce two types of spores and are hence said to be heterosporous.
Oogamous reproduction involves the fusion of one large, nonmotile (static) female gamete with a relatively smaller, motile male gamete. Example - Fucus (Brown alga) and Volvox (Green alga)
Sporophyte in mosses is more elaborate than in liverworts. It consists of three parts - foot, seta and capsule. The spores are contained within the capsule.
Pinus is monoecious bearing both male and female reproductive structures (cones) on the same plant while Marchantia is dioecious and bears the male antheridia and female archegonia on two separate thalli.
1, 2 and 3
Statements 1, 2 and 3 are correct.
In liverworts and mosses (Bryophytes) and ferns (Pteridophytes) the haploid gametophytic plant body is free living.
Gymnosperms and some pteridophytes such as Selaginella and Salvinia produce two types of spores and are hence said to be heterosporous.
Oogamous reproduction involves the fusion of one large, nonmotile (static) female gamete with a relatively smaller, motile male gamete. Example - Fucus (Brown alga) and Volvox (Green alga)
Sporophyte in mosses is more elaborate than in liverworts. It consists of three parts - foot, seta and capsule. The spores are contained within the capsule.
Pinus is monoecious bearing both male and female reproductive structures (cones) on the same plant while Marchantia is dioecious and bears the male antheridia and female archegonia on two separate thalli.
