What does the FPKM value represents in terms of expression level in RNA-seq when value is 0 (zero)for corresponding gene?

I have two different data sets of RNA-Seq, after the RNA-seq analysis i found that, gene of my interest is showing FPKM value 0 (Diseased condition) first data set with fold change value 0 but in...

21 October 2015 3,930 6 View