In the pairing of two nucleotides within the double helix?

Question

A. hydrogen bonds are used

B. adenine and thymine bind together

C. purines bind with pyrimidines

D. double ring nitrogenous bases connect to a single ring bases

E. all of the above

Answer 1

E

Answer 2

E).

A pairs with T via 2 H bonds and G pairs with C via 3 hydrogen bonds.