Consider the following segment of mRNA produced by the normal order of DNA nucleotides:
ACA UCA CGG GUA
b. What is the amino acid order if a point mutation changes UCA to ACA?

Question

Consider the following segment of mRNA produced by the normal order of DNA nucleotides:

ACA UCA CGG GUA

b. What is the amino acid order if a point mutation changes UCA to ACA?

Accepted Answer

All right. Hello everyone. So this question says that a regular DNA order produced the MRN A fragment shown below. And that's Gguagauuuccg. What amino acid sequence results from a point mutation that converts Aga to GA. So in this context, recall that a point mutation is one in which only one nucleotide is changed. In this case, an adenine has been changed into a guanine. So taking into account this change, the MRNA fragment is going to read as follows. That's GGU TG A, you, you, you and CCG. So the nice thing about this MRN A fragment is that it has already been separated into groups of three nucleotides known as codons and coons if you recall each code in one amino acid during the process of translation. And so the nice thing is that by referencing the genetic code, we can tell exactly which amino acids result from each co on. So here starting off with the first and referencing, of course, the genetic code G is going to code for Lacey. So the first amino acid from the sequence is glycine or GLY. Next off, we have GG A after taking into account the mutation and GG A also codes for glycine. So thats her second amino acid from there, we have you, you, you, which codes for Fenno alanine. And last, but not least we have CCG that codes for Prole. So let's compare this now to the original protein or the original amino acid sequence because before the mutation, the second coon was supposed to be a G eight and A G A codes for arginine. And so in this amino acid sequence, we can see that the second amino acid has been changed from arginine to LYCEE, which means that our sequence is going to be glycine, glycine, phenylalanine and prolene. And there you have it. So with that being said, thank you so very much for watching. And I hope you found this helpful.

Consider the following segment of mRNA produced by the normal order of DNA nucleotides:
ACA UCA CGG GUA
b. What is the amino acid order if a point mutation changes UCA to ACA?

Verified video answer for a similar problem:

Key Concepts

mRNA Translation

Point Mutation

Amino Acid Codons

Consider the following segment of mRNA produced by the normal order of DNA nucleotides: ACA UCA CGG GUAb. What is the amino acid order if a point mutation changes UCA to ACA?

Verified video answer for a similar problem:

Key Concepts

mRNA Translation

Point Mutation

Amino Acid Codons

Consider the following segment of mRNA produced by the normal order of DNA nucleotides:
ACA UCA CGG GUA
b. What is the amino acid order if a point mutation changes UCA to ACA?