The extrusion of the second polar body is essential for:
(i) Completion of meiosis II
(ii) Maintaining the correct chromosome number in the zygote
(iii) Allowing sperm penetration
(i) only
(i) and (ii)
(ii) and (iii)
(i), (ii), and (iii)
Related Questions
The ploidy of aleurone cell when a ‘4n’ female plant is crossed with ‘2n’ male plant?
5n
4n
3n
2n
Ovary develops into
Fruit
Seed
Fruit wall
Embryo
Which of the following correctly identifies a haploid, diploid, and triploid structure, respectively, within a fertilized angiosperm embryo sac?
Egg, zygote, endosperm
Degenerating synergids, zygote, primary endosperm cell
Polar nuclei, embryo, endosperm
Antipodal cells, embryo, zygote
During embryogenesis zygote undergoes
Cell division
Cell differentiation
Meiosis only
Both 1 and 2
Perisprem is found in
Seed
Fruit
Flower
Leaf
Epicotyle is the upper part of embryonal axis in
Monocots
Dicots
All plants
All of these
In angiosperms, after the pollen tube enters the synergid, what is the function of the two male gametes?
Syngamy and triple fusion
Formation of the embryo sac
Development of the pollen tube
Initiation of meiosis
The triploid nutritive tissue that develops within the seed after fertilization is called the:
Embryo
Zygote
Endosperm
Integument
Banana fruits are seedless, because
Auxins are sprayed for rapid development of fruits
Of vegetative propagation of plants
Of triploid plants
Fruits are artificially ripened
Aleurone layer is found in
Dicotyledons
Monocotyledons
Both (a) and (b)
None of these
