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Is it possible to influence gene expression?

Do you remeber that we have light sensitive proteins in our body?
yes. we have photo-receptors' called as rods&cones' in our retina.
like that,even green algae also has light sensitive protein "channel rhodopsin" on their cells mainly used for photosysnthesis.
do you believe that our "gene expression' can be regulated by lasers? If we can control the  gene expression it would be a great significance to biomedical research and clinical applications. By a short flash of femtosecond-laser irradiation  applied to mesenchymal stem cells, expression of a differentiation  can be activated.

is it possible to control the mind , by proteins sensitive to  Light? Yes.
channelrhodopsin-2,a protein(comes from the green algae, which uses it to seek out sunlight for photosynthesis), is  the magical switch that, in response to light, can turn a gentle mouse aggressiveshut down obsessive grooming behavior, and implant false memories in unsuspecting mice.it senses light, and transmits that information through electricity to higher processing centers.
human eyes work similarly. Light passes through the length of our eyeballs and falls on the back of the retina, activating light-sensitive proteins called photoreceptors (these are shaped like rods and cones). The photoreceptors transmit light information through two filter layers — ganglion and bipolar cells — that process the electric signals and send them to visual areas of the brain.

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