Nope.

1. Your DNA and your parents' or grand-parents' are similar to a very high level but not identical. This is because of the mutations accumulated at each replication. So more like +0.499999 with your parenta for example.

2. Also, the 'liveliness' of your DNA would have to take into account epigenetic changes across generations.

3. Your grand-parents DNA exist in multiple copies in people of your generation (admixture). Your cousins for example. So more than 0.25 for sure.

But the beauty of genetics lies in these small rare changes that have tremendous effect in who we are and how we adapt to nature.