The formula to calculate the Mitotic Index is:
\[ MI = \left( \frac{M}{T} \right) \times 100 \]
Where:
A Mitotic Index is a measure used in oncology and other biological sciences to determine the proportion of cells in a tissue sample that are undergoing mitosis. Mitosis is the process of cell division, so a higher mitotic index indicates a higher rate of cell division, which can be a sign of rapid growth or proliferation, such as in a tumor. The index is usually expressed as a percentage and is calculated by dividing the number of cells in mitosis by the total number of cells.
Let's assume the following values:
Using the formula:
\[ MI = \left( \frac{20}{200} \right) \times 100 = 10\% \]
The Mitotic Index (MI) is 10%.