Explore BrainMass
Share

Standard Genetic Code

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Using the standard genetic code, interpret the following
a) The following sequence was found to occur on a mRNA molecule:
5'-CCUUACACAGGAAACACGUAUGACCAUUGAGGCUUGAACAA-3'
What amino acid sequence is represented here following its translation?

b) For the above mRNA sequence, identify the bases that correspond to the Shine-Dalgarno sequence. Explain your answers.

c) Describe how the amino acid sequence would change if the twenty-first base (U) were mutated to G.

© BrainMass Inc. brainmass.com October 25, 2018, 2:20 am ad1c9bdddf
https://brainmass.com/biology/dna-proteins-and-rna/standard-genetic-code-295699

Solution Preview

a) The following sequence was found to occur on a mRNA molecule:

5'-CCUUACACAGGAAACACGUAUGACCAUUGAGGCUUGAACAA-3'

What amino acid sequence is represented here following its translation?

Response:

Let us separate the sequence into triplets to help us see it better.

5'-CCU UAC ACA GGA AAC ACG UAU GAC CAU UGA GGC UUG AAC AA

Since this is mRNA, to obtain the amino acid sequence, all we have to do is look up the triplet codons on the genetic code table. You could go to http://img.sparknotes.com/figures/1/132e5720f3b37836571a1aeb9d163ac3/genetic_code.gif for one.

Here would be a start for determining the amino acid sequence:

Proline - Tyrosine - Threonine - Glycine - Asparagine - Tyrosine - etc...

b) ...

Solution Summary

The expert examines standard genetic code interpreting. An mRNA sequence is examined.

$2.19
See Also This Related BrainMass Solution

Microbiology Questions

- You have a rabbit with an unknown illness. Apply Koch's postulates to prove that a specific bacterial species is responsible for the rabbit's illness. Identify all four postulates in your answer and describe how you would set up experiments to specifically address each postulate.

- List and describe 2 distinguishing features of prokaryotes and eukaryotes (ie: not in common) and 2 features that prokaryotes and eukaryotes have in common.

- Briefly describe the debate between the theory of spontaneous generation and the theory of biogenesis. Explain how Louis Pasteur's experiment with the S-neck flasks in the 1800s resolved this debate. Include a detailed description of Pasteur's experiment and an analysis of how it successfully proved one theory over the other.

- Explain the code of DNA and how the code gets translated into an amino acid sequence. Be sure to explain each step fully.

View Full Posting Details