[Junior]

If we take mouse DNA and put it in a human egg, don't we get a mouse?

I would think the result would be non-viable. There are things in the egg besides DNA that help the mouse develop. This is why, when scientists seriously consider cloning extinct animals they look for the closest living relatives of those animals to supply the eggs and act as surrogates.

[biblewonk]

So my ultimate point is that there is not enough data in
DNA or anywhere in the fertalized egg to make the body.
This would be easy to prove by anyone who happened to know
about data storage and math the complexity of living
organisms. DNA is more involved with cellular processes
and contains a few switches that define a few traits of
the body. It's like your windows switches that allow you
to change the way your desk top looks. Those switches are
not the software.