Verified answer

It is important due to the following reasons:

1. To maintain both the DNA strands together

2. To confer a structure to DNA with least steric hindrance

3. For the process of transcription in order to generate the m-RNA

4. For the process of replication.

Complementary means A always pairs with T and G always pairs with C. Without it DNA replication wouldn't be able to make an exact copy.

It helps to perform DNA replication.

Very important task.

is this multiple choice? its the third one there, replication information...