Which of the following is correct? a. the purine g bonds with the purine c. b. the purine c bonds with the pyrimidine g. c. the pyrimidine c bonds with the purine g. d. the pyrimidine c bonds with the pyrimidine g.

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons