HEL Which of the following is effective in reducing the number of viral infections?
1. antibodies
2. vaccines
3. innoculation
4. none of the above

What are the 3 types of artificial cloning

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?

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