PCR amplifies millions of copies of PCR amplifies millions o

PCR amplifies millions of copies of

PCR amplifies millions of copies of a short fragment of double-stranded DNA a short fragment of single-stranded RNA the entire genome (all the DNA in a sample) both (a) & (b)

Solution

The correct option is A that is the PCR amplifies a short fragment of double-stranded DNA. This is because the process of PCR works by taking the process of replication as the base. The same process of replication takes place during the process of PCR. The original strands serve as a template for the new stands. The new strands are assembled such that each nucleotide is in the new strand is determined by the corresponding nucleotide in the given template strand.