26 Jun (1 point) Determine the amino acid sequence encoded in the following mRNA sequenc
Question
Quiz 2 The Cell and DNA (25 points)
Below is a copy of Quiz 2 (25 points). Read carefully and answer the questions. This is an open book quiz, however, you are expected to do your own work and for the short answer questions write the answers using your own words. Submit as a Word or rtf attachment (please put your last name in the file name of attached documents–for example student John Smith would be Smith J.Quiz 2. doc). Do not submit your answers as a response to this topic. The quiz is due no later than March 29, 2015 11:59 P.M. Eastern Time. See the syllabus for the policy on late submissions.
Part A. Fill in the blank
1. (1 point) Determine the amino acid sequence encoded in the following mRNA sequence: mRNA codons: AUG GGU GUA AUC GGC ___________________________________________________
2. (2 points) Describe what would happen if GGU in question 1 was changed to CGU, name the type of mutation describe its effect on the primary structure of the polypeptide ______________________
3. (2 points) Describe what would happen if GUA in question 1 was changed to GUG, name the type of mutation and describe its effect on the primary structure of the polypeptide ______________________
Part B. Short answers
Answer in complete sentences using your own words and provide complete citations for the sources of your information. If you list the sources on the last page, you must provide in-text citations within your answers.
5 (4 points) What role do the existing strands of DNA play during the synthesis of the new DNA strands? Use the following sequence of double stranded DNA to illustrate how the existing and new strands are related after replication of the molecule (label which are the new and old strands).
3′ GATTACAGA 5′
5′ CTAATGTCT 3′
4. (3 points) Describe at least three functions of cell membranes.
5. (4 points) Describe the events and molecules involved in the process of transcription.
6. (3 points) Given an amino acid sequence (amino acids linked together), can one predict a unique corresponding mRNA nucleotide sequence (nucleotides linked together)? Explain how you arrived at your answer and give an example to illustrate.
Part C. DNA Activity(6 points)
Perform the virtual “DNA Extraction Activity” in Course Module 2 and answer the following questions.
1) When extracting DNA why should you use an enzyme?
a. Unwind from packing protein
b. Pull cells apart
c. Slow down extraction process
d. Protect DNA from degrading
2) Which of the following protects the ends of the DNA molecule?
a. Detergent
b. Salt
c. Water
d. Alcohol
3) What do you use to separate the cells from each other?
a. Strainer
b. Blender
c. ROH
d. Toothpick
4) Why does DNA end up in the alcohol layer at the end of the procedure?
a. DNA sinks because it’s more dense than the banana mixure
b. DNA sinks because it’s less dense than the banana mixure
c. DNA floats because it’s denser than the banana mixure
d. DNA floats because it’s less dense than the banana mixture
5) Why do you add detergent to the banana scraps?
a. Pull the cells apart from each other
b. Protect the DNA
c. Dissolve the cell and nuclear membrane
d. Change the density of the DNA
6) What are two things or conditions that could damage DNA if it is not protected by salt in Step 1 of the procedure
7) What would happen if you forgot to add the meat tenderizer?
8) What are at least two uses of the extracted DNA other than for forensics?
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.