Are the two strands of DNA molecule identical?

Explanation

**Step-by-Step Solution:**

1. **Understanding DNA Structure**: DNA is composed of two strands that form a double helix. Each strand is made up of a sequence of nucleotides.

2. **Base Pairing**: The two strands of DNA are held together by hydrogen bonds between complementary bases. The bases are adenine (A), thymine (T), cytosine (C), and guanine (G). In DNA, A pairs with T and C pairs with G.

3. **Complementary Sequences**: For the two strands to maintain the double helix structure, the sequence of bases on one strand must be complementary to the sequence on the other strand. This means that if one strand has an A, the opposite strand must have a T, and if one strand has a C, the opposite strand must have a G.

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