A master mix contains a mixture of all the reagents needed for a PCR. What are the reagents?
A) DNA, primers, and nucleotides
B) Primers, nucleotides, and polymerase
C) DNA, RNA, and nucleotides
D) RNA, nucleotides, and polymerase
option b is correct.
Polymerase Chain Reaction is a method performed for the
amplification of DNA pieces.
Functions of reagents are:
1. Nucleotide : The molecule of DNA is made of monomer called
nucleotides. Nucleotide of DNA are of 4 kind Adenine, Thymine,
Guanine and Cytosine. Adenine base pair with thymine with 2
hydrogen bonds and Cytosine base pair with guanine with 3 hydrogen
bonds.
2. Polymerase- In PCR, Taq polymerase enzyme is used, this is
thermostable enzyme as it can survive in high temperature without
getting denatured. This enzyme is isolated from Thermus
aquaticus.
3. Primers- in order to synthesize DNA primers are needed. Primers
are short DNA or RNA sequences complwmentary to the DNA template.
It will be the starting point for DNA polymerase to function.
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