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Skin because it has to be continuously replaced.

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How do you calculate a mitotic index?

To calculate the mitotic index, you count the number of cells undergoing mitosis in a given sample and divide this number by the total number of cells in the sample. The result is usually expressed as a percentage. Mitotic index is commonly used to assess the rate of cell division in tissues, especially in cancer research.


Why does skin have the highest mitotic index?

Skin has a high mitotic index because the skin cells are constantly renewing and replacing themselves due to wear and tear. The outermost layer of skin, the epidermis, contains rapidly dividing cells that continuously produce new skin cells to maintain and repair the skin barrier. This rapid turnover of cells is important for skin regeneration and wound healing.


How to find the mitotic index in a cell sample?

To find the mitotic index in a cell sample, count the number of cells undergoing mitosis and divide it by the total number of cells in the sample, then multiply by 100 to get the percentage. This helps determine the rate of cell division in the sample.


What is the mitotic index for the onion root tip?

The mitotic index for the onion root tip is typically around 18-20%, meaning that around 18-20% of cells in the onion root tip are actively undergoing mitosis at any given time. This high mitotic index is due to the rapid growth and development of the root tip.


What factors might influence the magnitude of the mitotic index?

The magnitude of the mitotic index can be influenced by several factors, including the phase of the cell cycle, tissue type, and external stimuli such as growth factors or stressors. Higher mitotic indices are often observed in rapidly dividing tissues, like cancerous cells or embryonic tissues, while quiescent or differentiated cells exhibit lower indices. Additionally, environmental factors like nutrient availability, temperature, and exposure to toxins can also affect cell division rates and thus the mitotic index.


Which has highest refractive index?

Diamond has the highest refractive index among common materials, with a value of about 2.42.


Why would the mitotic index be relevant to a diagnosis of breast cancer?

Because cancer is uncontrolled mitosis of cells; thus if the mitotic index of the breast cells in question is outside the normal range (above it, generally), then this would suggest increased rate of cell proliferation which could indicate cancer.


Which type of tissue would have a higher mitotic index normal tissue or cancerous tissue?

Cancer cells have higher mitotic index because they have a mutation in the DNA so they reproduce uncontrollably and therefore divide faster which means they have a higher mitotic index. ex. In a normal lung tissue, % of cells dividing is 5% while in a cancerous lung the % of cells divding is 25 %


Which colour in spectrum have highest refractive index?

Violet light has the highest refractive index among the colors in the visible spectrum.


What has the author Elizabeth Edgar written?

Elizabeth Edgar has written: 'Fluctuations in mitotic index in the shoot apex of Lonicera nitida'


How is the mitotic index calculated?

The mitotic index is calculated by counting the number of cells undergoing mitosis and dividing it by the total number of cells counted in a particular area of interest, then multiplying by 100 to get a percentage. This provides a measure of the proportion of actively dividing cells in a tissue sample, which can be important for understanding cell proliferation and growth rates.


What material has the highest refractive index among all known substances?

Diamond has the highest refractive index among all known substances.