| | Re: what are the differences between siRNA and miRNA?
miRNA and siRNA are classified on the basis of their origin.
(1)miRNA generated from an endogenous hairpin transcript and regulate the expression of another gene (trans regulator). it prevent the expression of protein
(2) siRNA generated from exogenous dsRNA molecules (outside of a cell),virus or expression of overlapping gene to form a dsRNA. siRNA regulate the expression of sequence from which itself originate. It work by degrading the complementary DNA sequence.