In a random DNA sequence ,what is the lowest frequency of encountering  a stop codon ? 

​a. 1 in 20      b. 1 in 3    c. 1 in 64      d.  1 in 10
show the calculation plz

ans A) 1 in 20
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Total no. of codon=64 No. of functional codon=61 No. of stop codon=3 Frequency of encountering stop codon=3/61= approx 1/20
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