Question

Can u explain how pcr can detect very. Low amounts of. Dna

Answer 1

 PCR stands for polymerase chain reaction, which is a technique used to amplify small amounts of DNA. PCR makes multiple copies of a specific DNA segment through the use of the enzyme DNA polymerase. DNA polymerase uses primers and free nucleotides to assemble complementary strands to the specified DNA template.  

 

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Answer 2

Explanation:

in pcr DNA fragment is amplified which increases the concentration of the fragment.

since it touches the concentration of 1 billion in 30 cycles so you can imagine how fast it works .....

in a simple sense it is increasing the concentration of the DNA

hope it helps you

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