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
There are 10 flowers in one individual plant of crotalaria. In each microsporangium of every stamen of all the flowers, there are 30 microspore mother cells. How many pollen grains are formed from that plant?
12000
24000
48000
96000
Approximate diameter of pollen grain is
25-50 micrometer
50-75 micrometer
75-100 micrometer
25-35 micrometer
Approximate diameter of pollen grain is
25-50 micrometer
50-75 micrometer
75-100 micrometer
25-35 micrometer
Larger nucleus in a pollen grain is
Generative nucleus
Vegetative nucleus
Tube cell
Sperm nucleus
Larger nucleus in a pollen grain is
Tube nucleus
Sperm nucleus
Generative nucleus
None of these
The process of formation of microspores I. From pollen mother cell through …A… formed …B… II. Microspore are arranged in …C… III. Microspore changes into the …D… A to D in the above statements are
A-Pollen grains, B-Microspore tetrad, C-Microsporogenesis, D-Meiosis
A- Microspore tetrad, B- Microsporogenesis, C-Meiosis, D- Pollen grains
A- Microsporogenesis, B- Microspore tetrad, C- Pollen grains, D- Meiosis
A- Meiosis, B- Microspore, C- Microspore tetrad, D- Pollen grains
60% of the angiosperms shed their pollens at the
2-celled stage
3-celled stage
4-celled stage
1-celled stage
The Intine of a pollen grain is mainly made up of?
cellulose, pectin
lipid, pectin
pectin, lignin
lignin, cutin
If there are 40 PMC in anther, what will be the number of pollen grains?
160
120
80
40
If there are 40 PMC in anther, what will be the number of pollen grains?
160
120
80
40
