General understanding questions: In order to determine the e…
General understanding questions: In order to determine the effects of different types of mesenchyme on differentiation of various types of epithelia, a biologist performed transplantation studies by separating and then combining the epithelial and mesenchymal portions of salivary glands, mammary glands, and pancreas, and obtained the following morphological results. Salivary mesenchyme + Salivary epithelium –> salivary gland Salivary mesenchyme + Pancreatic epithelium –> salivary gland Salivary mesenchyme + Mammary epithelium –> salivary gland Pancreatic mesenchyme + Pancreatic epithelium –> pancreas Pancreatic mesenchyme + Salivary epithelium –> no differentiation no mesenchyme + any of the three epithelium –> no differentiation Which of the following can be concluded from this experiment, based on the responses of salivary, pancreatic, and mammary epithelia to transplanted mesenchyme?