Prepare for NEET Biology Sexual Reproduction in Flowering Plants with MCQs & PYQs on NEET.GUIDE. Enjoy free practice, previous year questions, and expert solutions for pollination and fertilization.
NEET Questions / Botany / Sexual Reproduction in Flowering Plants
In a particular angiosperm species, the synergids exhibit a unique filiform apparatus oriented away from the micropyle. What would be the MOST likely consequence of this unusual arrangement?
Enhanced pollen tube attraction
Faster pollen tube growth
Reduced fertilization success
Increased seed production
A plant species exhibits diplospory. Which of the following statements accurately describes the origin of the embryo sac in this species?
The embryo sac develops directly from the megaspore mother cell without meiosis.
The embryo sac develops from a haploid megaspore after meiosis.
The embryo sac develops from a nucellar cell.
The embryo sac develops from an integumentary cell.
The female gametophyte in angiosperms is also known as:
Nucellus
Embryo sac
Ovule
Megaspore mother cell
The female gametophyte in angiosperms is also known as the:
Nucellus
Embryo sac
Pollen grain
Endosperm
A plant species reproduces through apospory. Which of the following is TRUE about the embryo sac formed?
It is haploid and develops from the megaspore mother cell.
It is diploid and develops from a somatic cell of the ovule.
It is triploid and develops from the fusion of polar nuclei and a sperm.
It is haploid and develops from a synergid.
In an angiosperm ovule, which structure is responsible for transporting nutrients from the placenta to the developing embryo sac?
Funicle
Integument
Micropyle
Chalaza
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
Mark the statement not true for an anatropous ovule.
Encloses single female gametophyte
The micropyle lies close to hilum
Its body is made of parenchymatous nucellus
Ploidy of funicle, nucellus and all cells of embryo sac are same
