EVERYDAY SCIENCE

Detailed explanation-1: -In angiosperms, pollen is produced by the anthers of the stamens in flowers. In gymnosperms, it is formed in the microsporophylls of the microstrobili (male pollen cones). Pollen consists of one or more vegetative cells and a reproductive cell.

Detailed explanation-2: -The anther usually contains four pollen sacs which are responsible for producing pollen grains. Each pollen grain is a single cell containing two male gametes. Once mature, the anther splits open and pollen is released.

Detailed explanation-3: -Through the process of meiosis, pollen is formed in the pollen sacs (microsporangia) inside the anthers of a flower. The anther, while it is developing from anther primordium (undifferentiated cells), forms two clusters of cells.

Detailed explanation-4: -Complete answer:-Pollen grains represent the male reproductive gametes of flowers. They are found in the anthers of flowers. Pollen grain is a tiny body that varies in their shape and structure.

Detailed explanation-5: -Pollen is produced in the anther, which is found inside the stamen of a flower.