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How many different mutations can result from a single base pair substitution in the unique tryptophan...

How many different mutations can result from a single base pair substitution in the unique tryptophan codon? Classify each as silent, missense, or nonsense.
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Answer #1

Tryptophan codon is UGG

now if we do single base pair substitution, Then possible codons could be--

let us first substitute the first U with A, G, C.

AGG= ARGININE (MISSENSE)

GGG= GLYCINE (MISSENSE)

CGG= ARGININE (MISSENSE)

let us substitute the second G with A, U, C.

UAG= STOP CODON (NONSENSE)

UUG= LEUCINE (MISSENSE)

UCG= SERINE (MISSENSE)

let us substitute the third G with A, U, C.

UGA= STOP CODON (NONSENSE)

UGU= CYSTEINE (MISSENSE)

UGC= CYCTEINE (MISSENSE)

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