Burton's Microbiology for the Health Sciences 9th Edition by Janet Duben-Engelkirk, Paul Engelkirk

تمرين 5

Which of the following statements about DNA is (are) true?
a. DNA contains thymine but not uracil.
b. DNA molecules contain deoxyribose.
c. In a double-stranded DNA molecule, adenine on one strand will be connected to thymine on the complementary strand by two hydrogen bonds.
d. All of the above statements are true.