Dinosaurs can be brought back to life through DNA?

Question

Through the bone structure and everything scientists/archaelogists have found and preserved, i read/heard that dinosaurs can be brought back by the government,but are not doiing so because they fear the dinosaur could go on a killing spree? With all the technology we have,stemcell research and all,scientists creating animals through ismple egg cells and even body cells,hard to believe we cant revive prehistoric creatures,including mammoths,dinosaurs,sabre toothed tigers,and others.

Answer 1

Mammoths would be easier, since we've found intact mammoth carcasses. Unfortunately, they've been frozen for a long time. When cells are frozen, ice crystals form and tear the cell to shreds. Without intact cells, we wouldn't be able to clone an organism. Even the DNA itself would probably be in pretty bad shape. While DNA is fairly stable, a million or so years would definitely take its toll.

As for the dinosaurs, we haven't found any genetic material, let alone cells. Fossilization destroys the cells and DNA, and we've never found a frozen, mummified, or otherwise preserved dinosaur.

With respect to the technology itself, cloning is possible, but very difficult. Many animals have been cloned, but it took many, many attempts to get one success, and even then, it was using fresh cells from healthy animals. Even if we found a suitably preserved prehistoric animal, we would need lots of cells, and even then, the genetic material would probably be of so poor quality, that cloning would be impossible.

Someday, it may be in the realm of possibility, but for now, it is just science fiction.

Answer 2

The dinosaur has to be grow in an appropriate enviornment assuming that we had both gametes (male and female) of past dinosaurs. So unless we had the actual dinosaur to be a mom I doubt we could find a suitable host for the egg to be grown in.