The core promoter region is located most proximally and contains the RNA polymerase binding site, TATA box, and transcription start site (TSS). RNA polymerase will bind to this core promoter region stably and transcription of the template strand can initiate. The TATA box is a DNA sequence (5'-TATAAA-3) within the core promoter region where general transcription factor proteins and histones can bind.
The color palette of diamond is very richly varied; it ranges from pink through red, blue, green, yellow and brown even to black diamonds. The rarest color occurring in natural diamonds is red, followed by green, blue, purple and brown.
Red. Red is probably the rarest eye color amongst the human population of the world. It is mainly seen in case of albinos and is the result of either large quantities of the ânormally scarceâ red areas in the eyes or a small leakage of blood into the iris. Black Black is amongst the rarest eye colors in the world.