Gene Control in Plants

Inactive Phytochrome absorbs red light of certain wavelength and becomes activated.Activation of Phytochrome in turn activate certain regulatory proteins that are present in the cytoplasm these protein enters the nucleus where it binds to the light regulatory element in the promotor regions for two genes.This stimulates transcription of the genes,the transcripts exit the nucleus and enters the cytoplasm,where the transalated at ribosomes,the polypeptide chain that form become folded into proteins.The proteins move into the chloroplast and they'll carry out their functions

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