Question

Based on your knowledge of the chemical structure of DNA, explain why all DNA molecules move...

Based on your knowledge of the chemical structure of DNA, explain why all DNA molecules move in the same direction towards the positive electrode when placed in an electric field. Name one analysis tool in biotechnology which uses this feature.

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

  Answer -

- The DNA molecules are negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode. Shorter strands of DNA move more quickly through the gel than longer strands resulting in the fragments being arranged in order of size.

* Analysis tools of Botechnological Methods -

An Gel electrophoresis is a technique used to separate DNA fragments according to their size. ... DNA fragments are negatively charged, so they move towards the positive electrode. Because all DNA fragments have the same amount of charge per mass, small fragments move through the gel faster than large ones.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Use your knowledge of how DNA polymerase works and the structure of DNA to explain why...
Use your knowledge of how DNA polymerase works and the structure of DNA to explain why continuous synthesis of both DNA strands is not possible (12.1)
1. Why can electric fields not cross each other? A. Many electric field lines can exist...
1. Why can electric fields not cross each other? A. Many electric field lines can exist at any given point in space. B. No electric field lines can exist at any given point in space. C. Only a single electric field line can exist at any given point in space. D. Two electric field lines can exist at the same point in space. 2. By considering the molecules of an insulator, explain how an insulator can be overall neutral but...
1. This question is related to your knowledge of how chemical structure affects a polymer’s glass...
1. This question is related to your knowledge of how chemical structure affects a polymer’s glass transition temperature. For each pair below draw the repeat unit of the polymers, select which polymer you believe has a higher glass transition temperature, and explain Pair 1: polyethylene versus poly(vinyl alcohol) Pair 2: poly(hydroxyethyl methacrylate) versus poly(propyl methacrylate) Pair 3: polyethylene versus polypropylene 2. You have polymerized a product containing seven PMMA molecules: three of the molecules have a degree of polymerization of...
Part 1: Two Round Conductors Gather all items required for the exercise. Note: If using the...
Part 1: Two Round Conductors Gather all items required for the exercise. Note: If using the lab kit box, remove contents and place in a secure area. Put on your safety goggles. Center the black conductive paper on the top of the box, grid-side up. Place the two metal nuts (conductors) at the (5 cm, 10 cm) and (20 cm, 10 cm) positions on the paper. Secure using two dissection pins for each conductor. See Figure 13. Note: Place the...
The scientific method is best distinguished from earlier forms of knowledge by Accurate measurements              b. inductive...
The scientific method is best distinguished from earlier forms of knowledge by Accurate measurements              b. inductive reasoning           c. deductive reasoning d. publishing of results                 e. experimentation Which one word best describes a tentative explanation of the data? a. control        b. deduction    c. theory          d. placebo       e. hypothesis An explanation which has been widely tested, which is not found to be false, and which explains a large group of observations is called                      a. quantitative analysis           b. a theory Qualitative...
Explain the complete HAZOP procedure as followed in the industry. See summary below. Explain all the...
Explain the complete HAZOP procedure as followed in the industry. See summary below. Explain all the main parts of HAZOP study in details given in the Pdf file including: 1. Overview (including definitions and usage) 2. Hazop methodology (including phases like definition, preparation, examination, documentation and follow-up). Give examples also 3. Risk review 4. Risk communication Guidance: Study the procedure carefully and then write the answers in your own words. Hazard & Operability Analysis (HAZOP) 1   Overview: Hazard and Operability...
Case 8: Patagonia Adopts Organizational Structure to Attract and Empower Passionate Employees What type of organization...
Case 8: Patagonia Adopts Organizational Structure to Attract and Empower Passionate Employees What type of organization allows employees to take off during the day to go surfing? The answer is Patagonia. When founder Yvon Chouinard first developed the company, he was not interested in pursuing profits as the firm’s main goal, but rather to contribute toward improving the planet. New employees are hired based in large part on their passion for the firm’s goals, and rather than being viewed as...
About John Daniels Chemicals Inc. This business case is about John Daniels Chemicals Inc., which is...
About John Daniels Chemicals Inc. This business case is about John Daniels Chemicals Inc., which is one the most respected and elite chemical research organization in the industry, operating since 1991, with the headquarters in Tanzania, Africa. Organizational Structure and Culture at John Daniels Chemicals Inc. Organizational culture in John Daniels Chemicals Inc. is an open and less rigid one, unlike the other usual corporations in the market. The scientists selected to work in John Daniels Chemicals Inc. are top...
Instructions: The assignment is based on the mini case below. The instructions relating to the assignment...
Instructions: The assignment is based on the mini case below. The instructions relating to the assignment are at the end of the case. The Case Mike Chang and Joan Brown are facing an important decision. After having discussed different financial scenarios into the wee hours of the morning, the two computer engineers felt it was time to finalize their cash flow projections and move to the next stage – decide which of two possible projects they should undertake. Both had...
Read the attached articles about the proposed merger of Xerox and Fujifilm. Utilizing your knowledge of...
Read the attached articles about the proposed merger of Xerox and Fujifilm. Utilizing your knowledge of external and internal analysis, business and corporate strategy, and corporate governance, please discuss the following questions: 1. What is the corporate strategy behind the merger of Xerox and Fujifilm? 2. Why did Xerox agree to the merger? Is this a good deal for Xerox? Discuss the benefits and challenges they face with the merger. 3. Why did Fujifilm agree to the merger? Discuss the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT