Give an account of sexuality in organisms.

Explanation

Sexuality involves formation and fusion of the male and female gametes, either by the same individual or by different individuals of the opposite sex. Sexuality in plants is varied, particularly in angiosperms, due to the production of diverse types of flowers. Plants are defined as monoecious and dioecious.
Monoecious : If the male and female flowers may be present on the same individual such plants are called as monoecious plants. Ex : Cucurbita and coconuts.
Dioecious : If the male and female flowers may be present on the separate individual such plants are called Dioecious plants. Ex : Papaya and date palm.
In Angiosperms based on sexuality flowers divided into two types. They are :
1) Staminate flowers : The flowers bearing stamens are called as staminate flowers.
2) Pistillate flowers : The flowers bearing pistil or Gynoecium are called as pistillate flowers.