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On a hypothetical island virus outbreak becomes a threat of future pandemic. Researchers have narrowed down the cause of outbreak to two viruses (virus 1 and virus 2). The DNA sequencing lab receives a sample for further analysis. Unfortunately, the sample was contaminated and the removal of foreign DNA leaves the lab with a short DNA fragment: AGTAGCTTCCAG. Given all available information (provided below) how can lab determine the type of the virus that caused the outbreak. Nucleotide probabilities of virus1
P(A)=P(T) =0.3
P(G)=P(C) = 0.2
Nucleotide probabilities of virus 2
P(A)=P(T)=P(G)=P(C)= .25 Assume: – Virus 1 and Virus 2 are equally likely to occur in nature.
– nucleotides are independent and identically distributed.