Question

Write a list of all the amino acids, linked together, that will be coded from this mRNA strand. Make sure to be aware of start and stop codons. G U C G A U G C G A U A C C G G A C C G U G G U A U G G A

Answer 1

The mRNA strand codes for the following amino acid sequence: Methionine, Arginine, Tyrosine, Proline, Aspartic acid, Arginine, Glycine, and Methionine. Translation begins with the start codon AUG, and each triplet codon is translated into an amino acid until a stop codon is encountered.

Step-by-step explanation:

The provided mRNA strand is GUCGAUGCGAUACC.

To determine the amino acids this encodes, we must first identify the start codon, AUG, which also codes for the amino acid Methionine (Met).

We read the sequence from the start codon and translate each subsequent triplet codons into their respective amino acids until a stop codon is encountered.

The stop codons are UAA, UAG, or UGA, which do not code for any amino acid and signify the end of translation.

Translating the given strand:
- AUG is the start codon and codes for Methionine (Met).
- CGA codes for Arginine (Arg).
- UAC codes for Tyrosine (Tyr).
- CCG codes for Proline (Pro).
- GAC codes for Aspartic acid (Asp).
- CGU codes for Arginine (Arg).
- GGU is Glycine (Gly).
- AUG again codes for Methionine (Met). However, the strand stops at this point because a sequence representing a stop codon does not appear.

The resulting amino acid sequence from this mRNA strand, in order, is Met-Arg-Tyr-Pro-Asp-Arg-Gly-Met.