Shown here are the amino acid sequences of the wild-type...

Question

Shown here are the amino acid sequences of the wild-type and three mutant forms of a short protein.
___________________________________________________
Wild-type: Met-Trp-Tyr-Arg-Gly-Ser-Pro-Thr
Mutant 1: Met-Trp
Mutant 2: Met-Trp-His-Arg-Gly-Ser-Pro-Thr
Mutant 3: Met-Cys-Ile-Val-Val-Val-Gln-His _

Use this information to answer the following questions:

Using the genetic coding dictionary, predict the type of mutation that led to each altered protein.

Accepted Answer

Hello everyone and welcome to today's video. So the amino acid sequence of a wall type peptide is as follows. And so we're given the sequence right here in the problem. The mutant form of the same peptide is as follows and we have only four amino assets in this mutant form to identify the type of mutation that change the form of the peptide. Now remember that we have when we compare them as shorter peptide in the mutated form of the peptide where there's only four amino acids here. So we have methane in and then we have the exact same amino acids up to amino acids number form number four and then it stops. And the reason it stops is because these are ginning was changed for a stock code on that stopped translation of this peptide. So when an amino acid is changed to a stop coding, we call that a nonsense mutation. Making answer choice B The correct answer to the question. I really hope this helped you. And I hope to see you on the next one.

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