Which one of the following statements is not true?
Pollen grains of many species cause severe allergies.
Stored pollen in liquid nitrogen can be used in the crop breeding programmes.
Tapetum helps in the dehiscence of anther.
Exine of pollen grains is made up of sporopollenin.
Location and Function : Endothecium and Tapetum
Which part of the reproductive structure produces both enzymes and hormones
Describe the structure of pollen grain and explain the development of male gametophyte in it.
Arrange the following terms in the correct developmental sequence: Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gametes
Where does pollen tube developes ?