Prepare for NEET Biology Sexual Reproduction in Flowering Plants (Post Fertilization Structure And Events) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert help to understand endosperm and embryo formation.
NEET Questions / Botany / Sexual Reproduction in Flowering Plants / Post Fertilization Structure And Events
In angiosperms, after fertilization, what structures within the embryo sac represent the haploid, diploid, and triploid stages, respectively?
Synergids, zygote, primary endosperm nucleus
Antipodals, zygote, endosperm
Polar nuclei, embryo, endosperm
Egg cell, zygote, antipodals
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
In an angiosperm embryo sac, the ploidy level of the zygote, the primary endosperm nucleus, and a synergid (post-fertilization) are, respectively:
n, 2n, 3n
2n, 3n, n
3n, 2n, n
n, 3n, 2n
Following double fertilization in angiosperms, the endosperm develops from the _____, which is _____.
zygote; diploid
primary endosperm cell; triploid
synergid; haploid
antipodal cell; haploid
If the polar nuclei in an angiosperm fail to fuse with a male gamete, what would be the ploidy of the resulting endosperm?
Haploid (n)
Diploid (2n)
Triploid (3n)
No endosperm formation
How many meiotic divisions are required to produce 100 seeds in a typical flowering plant?
25
100
50
125
In monocotyledonous seeds the outer covering of endosperm separates the embryo by a proteinaceous layer called
Scutellum
Coleorhiza
Aleurone layer
Coleoptile
Choose incorrect option w.r.t. zygote formed as a product of syngamy
Vital link that ensures continuity of species between individuals of two successive generations
Its development depends upon the environment to which it is exposed
Every organism reproducing sexually or asexually begins life as a single celled structure called zygote
Zygote may undergo a period of rest before its development
