Plant Molecular Biology is a scientific field that studies the molecular mechanisms underlying plant growth, development, and responses to environmental changes. It combines techniques from molecular biology, genetics, and biochemistry to understand how plants function at the cellular level. Researchers investigate processes such as photosynthesis, nutrient uptake, and stress responses. This discipline also explores the genetic makeup of plants, including the role of DNA, RNA, and proteins in regulating plant traits. By manipulating these molecular components, scientists aim to improve crop yields, enhance resistance to diseases, and develop plants that can thrive in challenging conditions.