Pollen is produced by the process of

Pollen is produced during the pollen formation cycle of a flower.

Explanation:

Meiosis

Explanation:

Pollen grains are produced through the process of meiosis, during which cells divide and grow in number. The grains of pollen are often located in pollen sacs on the ends of the stamen which is the male parts of the flower, which typically surround the carpel; the female parts of the flower