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
A unique feature of angiosperm embryogenesis is the formation of a suspensor. Which statement regarding the suspensor is INCORRECT?
It connects the developing embryo to the maternal tissues.
It provides a conduit for nutrients and growth regulators.
It pushes the embryo into the endosperm.
It undergoes extensive cell divisions to form the embryo proper.
In a rare genetic mutation in a dicot plant, the formation of the hypophysis is inhibited. What would be the MOST likely direct consequence of this mutation?
Failure of endosperm development
Impaired radicle development
Absence of cotyledons
Delayed fruit ripening
The first cell of the new generation in angiosperms is called the:
Embryo
Endosperm
Suspensor
Zygote
The role of the endosperm is to:
Protect the embryo
Form the seed coat
Develop into the fruit
Provide nutrition to the developing embryo
Which part of the embryo develops into the shoot tip?
Radicle
Cotyledons
Plumule
Suspensor
Which of the following is NOT a characteristic event of post-fertilization development in angiosperms?
Formation of haploid pollen grains
Development of the endosperm
Development of the embryo
Development of the fruit
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
