Tissue culture is a laboratory technique used to grow cells, tissues, or organs in a controlled environment outside of their natural setting. This method allows scientists to study the growth, development, and behavior of cells in a way that mimics their natural conditions. It is commonly used in fields like plant biology, medicine, and genetics. In plant tissue culture, small pieces of a plant, such as leaves or stems, are placed in a nutrient-rich medium to encourage growth. This technique can produce new plants quickly and is often used for propagation and conservation of rare species. In medicine, tissue culture can help in developing vaccines and studying diseases.