The principal enzyme involved in DNA replication is called DNA polymerase . The enzyme joins to synthesize a new strand of DNA . DNA replication is called , because each new DNA molecule is made up of one original and one new strand.

Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form