Prepare for NEET Biology Sexual Reproduction in Flowering Plants (Pre Fertilization Structure And Events) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to examine pollen development, stigma, and pollination.
NEET Questions / Botany / Sexual Reproduction in Flowering Plants / Pre Fertilization Structure And Events
The process of formation of microspores from a pollen mother cell (PMC) through meiosis is called:
Megasporogenesis
Microsporogenesis
Sporogenesis
Gametogenesis
Which of the following is NOT a characteristic of a mature pollen grain?
It has a hard outer exine layer
It contains a generative cell and a vegetative cell
It is always binucleate
It is the male gametophyte
The ovule attached to the placenta by means of a stalk called:
Hilum
Micropyle
Chalaza
Funicle
What is the function of the tapetum in the anther?
Protection of the anther
Production of pollen grains
Nourishment of developing pollen grains
Dehiscence of the anther
The female gametophyte in angiosperms is also known as:
Nucellus
Embryo sac
Ovule
Megaspore mother cell
In a typical angiosperm ovule, how many megaspores are functional?
One
Two
Three
Four
A typical angiosperm embryo sac at maturity is:
8-celled, 7-nucleate
7-celled, 7-nucleate
8-celled, 8-nucleate
7-celled, 8-nucleate
After the completion of megagametogenesis in a typical angiosperm, the mature female gametophyte contains:
4 cells and 4 nuclei
8 cells and 8 nuclei
7 cells and 8 nuclei
7 cells and 7 nuclei
Which of the following correctly describes the cellular organization of a mature embryo sac in a typical angiosperm?
8 cells, 7 nuclei
7 cells, 8 nuclei
8 cells, 8 nuclei
7 cells, 7 nuclei
How many cells and nuclei are present in a mature embryo sac of a typical angiosperm?
8 cells, 7 nuclei
7 cells, 7 nuclei
8 cells, 8 nuclei
7 cells, 8 nuclei