Where does photoactivation occur?​

"Answer:

.

Explanation:

Photoactivation of fluorescence represents a novel technology for marking structures in living cells and organisms with the precision of a light microbeam. In addition to the experiments described above, future applications of photoactivation of fluorescence may include studying membrane and membrane skeleton dynamics during cell locomotion and adhesion, and perhaps also in following membrane transport and recycling pathways directly under the microscope. In addition to ‘standard’ embryonic fate mapping, one can imagine that photoactivation of fluorescence could also be used to mark cells or fields of cells in order to study morphogenetic movements in development, nerve growth, and cell-cell coupling with much greater precision than has previously been available in situ. More broadly speaking, photoactivation of fluorescence is one of a number of light-directed techniques – for example, photoactivation or photoablation of enzyme activities or enzyme substrates, or even the potential photoactivation of gene expression – which may be applied to complex biological problems. It is exciting to consider how these techniques may be combined in the future in order to uncover the inner workings of cells."