Shaalaa.com | Pre-fertilization events
(a) Plan an experiment and prepare a flow chart of the steps that you would follow to ensure that the seeds are formed only from the desired sets of pollen grains. Name the type of experiment that you carried out.
(b) Write the importance of such experiments
A student on a school trip started sneezing and wheezing soon after reaching the hill station for no explained reasons. But, no return to the plains, the symptoms disappeared. What is such a response called? How does the body produce it?
Name the organic material exine of the pollen grain is made up of. How is this material advantageous to pollen grain?
An anther with malfunctioning tapetum often fails to produce viable male gametophytes. Give any one reason.