 northern blot applications. There are many applications of northern blot like we can study gene expression in eukaryotic cells with the help of northern blot. We can measure amount and size of the RNAs which are transcribed from the eukaryotic genes. We can estimate the abundance of the RNAs. So northern blot can help us for studying the gene expression. It can help us to check the amount of the RNAs and the size of the RNAs and how much abundance of the RNA is in a particular tissue or in a cell. Northern blot can also help to equalize the amount of RNA loaded into the lanes of gel, use of housekeeping genes, normalizing samples according to their contents of messenger RNA. So there are many applications of the northern blot. Northern blot is the type of molecular biology technique in which we can study RNA in different ways. We can identify the sequence of RNA. We can estimate the amount of RNA by using this technique.