16 Jun The genetic code is degenerate, with two to six codons specifying
Question
The genetic code is degenerate, with two to six codons specifying each of the amino acids except for methionine and tryptophan. To explore this idea use the codon database and find data on the six leucine codons.
Go to the codon database complied from GenBank data: http://www.kazusa.jp/codon/ . Search Homo sapiens, Escherichia coli, Arabidopsis thaliana, and Caenorhabditis elegans in the query box. Answer each question fully.
1. Are all of the codons specifying a given amino acid used with equal frequency, or are some codons used more frequently than others? For example, the codons UUA, UUG, CUU, CUC, CUA, and CUG all specify leucine. Are these six leucine codons present with equal frequency in the coding regions of mRNAs?
2. Are the six codons specifying leucine used with equal frequency in mRNAs transcribed from human nuclear genes? From human mitochondrial genes? Are these codons used at the same frequency in nuclear and mitochondrial genes?
3. Are the leucine codons used at about the same frequencies in the four different species? Is there any bias in codon usage (preferred use of specific codons) related to the AT/GC content of the genomes of different species?
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.