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
Which of the following nutritive tissues in a seed is derived from the nucellus?
Endosperm
Perisperm
Coleoptile
Coleorhiza
In some seeds, the nucellus persists and is called:
Integument
Perisperm
Micropyle
Hilum
Which part of the seed develops from the nucellus and provides nourishment in some seeds like black pepper and beet?
Embryo
Endosperm
Perisperm
Seed Coat
What happens to the male gametes after they are released inside the embryo sac?
One fuses with the egg cell, and the other fuses with the polar nuclei.
Both fuse with the egg cell.
Both fuse with the polar nuclei.
They degenerate.
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
Which statement correctly describes the fate of the male gametes discharged in the synergid?
One participates in syngamy, and the other participates in triple fusion.
Both participate in syngamy.
Both participate in triple fusion.
Both degenerate.
Double fertilization in angiosperms involves the fusion of the male gametes with which structures?
Egg cell and polar nuclei
Two egg cells
Two polar nuclei sets
Synergids and antipodals
If one male gamete fuses with the egg cell, what is the fate of the other male gamete in the process of double fertilization?
Fuses with the polar nuclei to form the primary endosperm nucleus
Fuses with another egg cell
Degenerates
Forms the seed coat
When does the extrusion of the second polar body from the egg nucleus typically occur?
Before ovulation
After sperm entry
During the formation of the primary oocyte
Before the first meiotic division
