<span>Purines and pyrimidines form hydrogen bonds between each other. Certain polar chemical groups form electrostatic interactions or hydrogen bonds. The A-T and C-G pairings form the hydrogen bonds between the amine and carbonyl groups on the complementary bases.</span>
Answer:
Study, I don't know?
anyways hope this helps <3
I think it’s this but i might be wrong i’m not 100% sure
pharmacological
C. Most psychologists believe that prosocial behavior always contains an element of self sacrifice.
