NEET 2012
- Exam
- NEET
- Year
- 2012
- Subject
- Botany
- Chapter
- Sexual Reproduction in Flowering Plants
NEET 2012 · Botany · Sexual Reproduction in Flowering Plants
Which one of the following statements is wrong?
Which one of the following statements is wrong?
Options
- AWhen pollen is shed at two-celled stage, double fertilization does not take place
- BVegetative cell is larger than generative cell
- CPollen grains in some plants remain viable for months
- DIntine is made up of cellulose and pectin
Correct answer
A. When pollen is shed at two-celled stage, double fertilization does not take place
Step-by-step solution
Before pollination the protoplast of pollen grain divides into two unequal cells small generative cell and large tube or vegetative cell. In some species the generative cell divides into two male gametes prior to dehiscence of pollen grain. Therefore at the time of pollination the pollen grain is either 2-celled or 3-celled.