How many half-lives should have elapsed if 6.25% of the parent isotope remains in a fossil at the time of analysis?

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#Question id: 23144

#13. Methods in Biology

An optical measurement of a protein is taken through microscopy by given that protein a high energy light and it emits a low energy light after absorption. What phenomenon is taking place?

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#Question id: 23145

#13. Methods in Biology

A chemical is said to be fluorescent if it absorbs light at one wavelength (excitation) and emits light (fluoresces) at a specific 

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#Question id: 23146

#13. Methods in Biology

A phenomenon of absorption of light at a certain wavelength and then emission at longer wavelength is known as

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#Question id: 23147

#13. Methods in Biology

In fluorescence microscopy why the fluorescence occurs at longer wavelength when there shorter   wavelength of light is applied?

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#Question id: 23149

#13. Methods in Biology

In fluorescence microscopy a usually used fluorochrome that is fura-2 is sensitive to which ions?

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#Question id: 23150

#13. Methods in Biology

How fura-2 dye moves inside the cell through plasma membrane?