And in this method we can produce any type of protein, an enzyme found inside our body. And that's why it is a very, very important procedure in the field of medicine. Now the question is how exactly one of the steps involved in producing the complementary double stranded DNA molecule that is complementary to this modified mature mRNA. Well, let's take a look at the following seven steps that basically describes how we can produce this double stranded complementary DNA molecule. So we basically take our eukaryotic cell and we extract that modified mRNA molecule. And so this blue molecule is that modified mRNA molecule.