You have been tasked with developing a new polymerase chain reaction (PCR) protocol for detecting the DNA virus Adenovirus type 5 in patient samples. Which of the following is unnecessary to prepare for this PCR?Group of answer choicesDeoxynucleoside triphosphates (dNTPs)A DNA polymeraseThe sequence of the virus genomeConversion of the genome to cDNA using a reverse transcriptase
Question
You have been tasked with developing a new polymerase chain reaction (PCR) protocol for detecting the DNA virus Adenovirus type 5 in patient samples. Which of the following is unnecessary to prepare for this PCR?Group of answer choicesDeoxynucleoside triphosphates (dNTPs)A DNA polymeraseThe sequence of the virus genomeConversion of the genome to cDNA using a reverse transcriptase
Solution
The unnecessary step in preparing for this PCR is the conversion of the genome to cDNA using a reverse transcriptase. This is because Adenovirus type 5 is a DNA virus, not an RNA virus. Reverse transcriptase is used to convert RNA into DNA (cDNA), which is not necessary when you are starting with a DNA virus. The other components listed (dNTPs, a DNA polymerase, and the sequence of the virus genome) are all necessary for a PCR protocol.
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