Which of the following statements regarding the life cycle of Selaginella is INCORRECT?
The megaspores and microspores germinate to give rise to female and male gametophytes, respectively.
The development of the zygote into the embryo takes place within the female gametophyte, which is independent of the sporophyte.
The sporophyte is the dominant phase in the life cycle.
Selaginella exhibits heterospory.
Related Questions
In which plant group does the sporophyte develop within the archegonium of the gametophyte?
Bryophytes
Pteridophytes
Gymnosperms
Angiosperms
In angiosperms, double fertilization results in the formation of:
Zygote and endosperm
Two zygotes
Endosperm and embryo sac
Two endosperm nuclei
The phenomenon of 'double fertilization' is characteristic of:
Gymnosperms
Pteridophytes
Bryophytes
Angiosperms
In ferns, the prothallus represents the:
Sporophyte
Gametophyte
Sporangium
Archegonium
Most algal genera are haplontic some of them such as …A…, …B… and …C… are haplo-diplontic. Here A, B and C refers to
A-Ectocarpus, B-Polysiphonia, C-Kelps
A-Volvox, B-Spirogyra, C-Kelps
A-Spirogyra, B-Polysiphonia, C-Ectocarpus
A-Volvox, B-Kelps, C-Ectocarpus
In the life cycle of a moss, the sporophyte is:
Independent and photosynthetic.
Dependent on the gametophyte for nutrition.
The dominant phase.
Responsible for producing gametes.
In the alternation of generations the sporophytic generations is …A… and the gametophytic generation is …B… . Here A and B refer to
A-2n; B-n
A-n; B-2n
A-n; B-n
A-2n; B-2n
In which of the following gametophyte is not independent free living
Marchantia
Pteris
Pinus
Funaria
The main difference between the life cycles of gymnosperms and angiosperms is the presence of:
Flowers and fruits
Seeds
Vascular tissue
Dominant sporophyte
Identify the alga, which exhibits diplontic life cycle.
Spirogyra
Chlamydomonas
Fucus
Volvox
