Why reason best illustrates why Hershey and Chase chose to use viruses in their experiments?

A.)Viruses are made up of the two things that scientists were studying at the time, proteins and DNA.

B.)Viruses cannot make humans sick, but bacteria could.

C.)Viruses are immune to radioactivity and cannot be degraded by it.

D.)Viruses are easy to obtain and manipulate.

1. an enzyme is considered a(n) because it speeds up a chemical reaction without being used up.2. in a catalyzed reaction, a reactant is often called a(n) . an enzyme is specific because the shape of its matches only particular reactants.4. an enzyme speeds up reactions by lowering the . the between an active site and its substrate often strains bonds and the reaction proceed.6. a( , which is often a vitamin, binds to an enzyme and plays a role in catalysis.7. high temperatures or changes in ph can an enzyme, causing it to lose its shape and biological activity.