a. An A base on one always pairs with a G base on the other.
b. One was the template for the synthesis of the other.
c. They are a pair of sister chromatids.
d. They are connected to each other by sugar-phosphate bonds.
e. They have identical base sequences.
What is the relationship between any two strands of DNA?
b. is correct. You have a strand of DNA and then an antisense strand that matches in terms of its bases (A, T, G and C). The strands unzip when they replicate.
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