Https://www.nasa.gov/home/hqnews/2011/jul/HQ_M11-151_Atlantis_STS-135_Landing.html
this page will help a lot
<span>What ensures that DNA molecule is replicated
exactly as its original strand is with the ability of the DNA to make way and
let the base pairs match with each base. This enables them to form the same
strands so that it is identical and not different with the original strand.</span>
Answer:
the capsid is the inner protective layer of the viral genetic information(rna)