👉 Heterokaryosis is a condition in which two or more cells from different organisms are present within the same cell. This can occur in various biological processes, such as cloning, genetic manipulation, and tissue engineering. For example, in cloning, scientists use cells from two different species to create new individuals. Similarly, in genetic manipulation, scientists manipulate a single organism's DNA with another organism's DNA to produce an identical clone of that organism. In tissue engineering, cells are grown in the same culture