A newly discovered level of gene expression in vertebrates involves the DNA areas that used to be called "junk DNA".Actually these DNA are encoded into

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Small RNAs (sRNA)are transcribed from a DNA template located in what use to be called junk DNA because it did not code for protein.The term RNA interference refers to the activities of miRNAs and siRNAs,which are now known to be important for controlling gene expression especially in vertebrates.

A Newly Discovered Level of Gene Expression in Vertebrates Involves