In this article we will discuss about the ABC model of flower development. The ABC model of flower development in angiosperm demonstrates the presence of three classes of genes that regulate the development of floral organs. The genes are referred to as class A genes, class B genes and class C gene. These genes and the interaction between them induce [...]
The below mentioned article provides biology notes on Flowers or Floral Organs. Flower is a specialized condensed shoot of an angiospermic plant in which the shoot apical meristem gets transformed into floral meristem for carrying out sexual reproduction through progressive specialisation of leaves into floral appendages. Like a branch, it may develop in the axil of small leaf-like structure called [...]
In this article we will discuss about the parts and functions of a flower. Parts of a Typical Flower: A typical flower consists four whorls of floral appendages, attached on the receptacle, i.e., calyx, corolla, androecium and gynoecium. Of these, the two lower whorls, i.e., calyx and corolla are sterile and considered as non-essential/accessory/helping whorls and the two upper whorls, [...]