Final answer:
The bases of DNA strands are the components that pair in a consistent complementary manner, as per Chargaff's rule. This ensures that each strand can serve as a template for producing new strands during DNA replication.
Step-by-step explanation:
The bases of DNA strands pair in a consistent complementary fashion. This can be explained by the unique nature of DNA, as a double helix structure made up of two strands that run anti-parallel to each other and are held together by hydrogen bonds.
On each strand, there are four types of bases: adenine (A), thymine (T), guanine (G), and cytosine (C). According to the base pairing rule, or Chargaff's rule, A always pairs with T and G always pairs with C. Thus, the sequence of one strand determines the sequence of the other strand. This specific pairings between bases ensures accurate DNA replication.
Learn more about DNA Base Pairing