In cells infected with simian sarcoma virus,the sis oncogene causes the cells to release increased amounts of Sis protein,which is recognized by PDGF-receptor molecules on the cells' surface.This type of signaling loop is an example of

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Autocrine signaling occurs when a cell releases a signaling molecule that binds to receptors on the same cell or cells of the same type, leading to a response within the same cell or cells. In this case, the Sis oncogene causes cells to release Sis protein, which binds to PDGF-receptor molecules on the same cell surface, leading to a response within the same cells, making it an example of autocrine signaling.

In Cells Infected with Simian Sarcoma Virus,the Sis Oncogene Causes