Which of the Following Nitrogenous Bases are Correctly Paired

Question

Which of the following nitrogenous bases are correctly paired?
A)adenine-uracil;guanine-cytosine
B)adenine-cytosine;guanine-thymine
C)adenine-thymine;guanine-cytosine
D)adenine-adenine;guanine-guanine
E)adenine-guanine;thymine-cytosine

Accepted Answer

Hydrogen bonding is possible between the paired bases if A pairs with T and C pairs with G as predicted by Chargaff's rules.The pairing of these bases is called complementary base pairing.