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DNA Has Four Different Bases

question 38

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DNA has four different bases.Which of the following are other structural characteristics of DNA?
I.The bases are attached to the phosphate groups.
II.The bases are attached to the sugar molecule,deoxyribose.
III.The bases A and T are complementary,and C and G are complementary.
IV.The bases A and C are complementary,and T and G are complementary.


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