Final answer:
Complementary DNA (cDNA) can hybridize because the two strands of DNA are complementary to each other. This allows for DNA replication and the synthesis of new complementary strands. The base pairing rule determines which bases can pair with each other, allowing cDNA to bind and hybridize.
Step-by-step explanation:
In biology, complementary DNA (cDNA) can hybridize because the two strands of DNA are complementary to each other. This means that the sequence of bases in one strand can be used to create the correct sequence of bases in the other strand. The base pairing rule states that adenine (A) can only pair with thymine (T), and guanine (G) can only pair with cytosine (C). Therefore, if one strand of DNA has the sequence 5'-AATTGGCC-3', the complementary strand would have the sequence 3'-TTAACCGG-5'.
DNA replication occurs by separating the two strands of the double helix, where each strand serves as a template for the synthesis of a new complementary strand. The enzyme DNA Polymerase reads the template strand and builds the new strand of DNA by adding the appropriate complementary bases according to the base pairing rules.
Overall, complementary DNA hybridization is possible because the two strands of DNA in a double helix are complementary to each other, and they can separate and serve as templates for the synthesis of new complementary strands.