Explain the difference between SDS-PAGE gels with acrylamide to the bis-acrylamide ratio of 29:1 compared to...
Explain the difference between SDS-PAGE gels with acrylamide to the bis-acrylamide ratio of 29:1 compared to 37:1? In which one do proteins move faster and why?
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Explain the difference between SDS-PAGE gels with acrylamide to
the bis-acrylamide ratio of 29:1 compared to...
1. Although you are making 12% SDS – PAGE gels, other percentages can be made. a....
1. Although you are making 12% SDS – PAGE gels, other percentages can be made. a. When would you want to use a 10% gel? b. When would you want to use a 20% gel? 2. Why must you use both acrylamide and bis – acrylamide to make your gel? 3. There are three ratios of acrylamide:bis – acrylamide that are used when making these types of gels. a. What is the primary application for a gel made up of...
1. When using SDS-PAGE, proteins will be separated on the basis of what physical property? 2. ...
1. When using SDS-PAGE, proteins will be separated on the basis of what physical property? 2. You are given two proteins, one with a molecular weight of 67,435 Daltons and other with a molecular weight of 21,345 Daltons. Which protein will move further in the SDS-PAGE?
1-Define SDS-PAGE? 2-Explain why we use SDS (sodium dodecyl sulfate) in electrophoresis technique to separate proteins...
1-Define SDS-PAGE? 2-Explain why we use SDS (sodium dodecyl sulfate) in electrophoresis technique to separate proteins or nucleic acids? 3- Explain why TEMED should be the last reagent that add to the solution when preparing the gel?
1. Figure I shows an SDS-PAGE gel. A) Rank the 3 proteins by size, from largest...
1. Figure I shows an SDS-PAGE gel. A) Rank the 3 proteins by size, from largest to smallest. Explain why this trend is observed in SDS-PAGE gels. B) What is the purpose of SDS in SDS-PAGE? C) Sample L is the ladder. What is its purpose? D) Typically, PA (polyacrylamide) is used as the gel for protein electrophoresis, whereas agarose is used for DNA electrophoresis. Explain why a different gel material is used, Specifically referring to the pore size of...
parts a,b, c please 3. Sodium dodecyl sulfate (SDS) polyacrylamide gel electrophoresis a. After pouring the...
parts a,b, c please
3. Sodium dodecyl sulfate (SDS) polyacrylamide gel electrophoresis a. After pouring the SDS polyacrylamide gel, you realize that instead of 2 ml, you used 4 ml of 30% acrylamide/bisacrylamide solution for the preparation of the separating gel (in both cases for 5 ml, total gel volume). How would this affect the separation of your proteins during SDS PAGE? Explain your answer! b. You have to remake the gel and are now making sure just to add...
Why are proteins heat denatured prior to analysis in SDS-PAGE? Select all answers that apply. Denaturation...
Why are proteins heat denatured prior to analysis in SDS-PAGE? Select all answers that apply. Denaturation of the protein is necessary so that proteins run proportionally to their size, based on the interaction of SDS with the unfolded protein. Heat is used to hydrolyze the peptide bonds of the protein. The heat step allows the proteins to unfold, enabling the protein chain to be coated with SDS molecules. Heat is used to hydrolyze disulfide bonds. QUESTION 2 1.5 points Saved...
1. Explain the difference between an intron and an exon. 2. Why do the two possible...
1. Explain the difference between an intron and an exon. 2. Why do the two possible PCR products differ in size by 300 base pairs? 3. Explain how agarose electrophoresis separates DNA fragments. Why does a smaller DNA fragment move faster than a larger one? 4. What kind of controls are run in this experiment? Why are they important? Could others be used?
Explanation of SDS-PAGE for Western blotting procedure, PLEASE answer the questions BELOW: 1. What does a...
Explanation of SDS-PAGE for Western blotting procedure, PLEASE answer the questions BELOW: 1. What does a gel electrophoresis allow you to do? 2. What is a gel? 3. How do you make the protein move, and why does this work? 4. Which protein fragments travel the furthest and why? 5. Name 3 materials used to make a gel. 6. What is polyacrylamide? 7. What is the purpose of the buffer? 8. What is the comb (in the gel) for? 9....
The next question concerns the SDS-PAGE figure below. Lane 1 contains an unknown sample. Lane M...
The next question concerns the SDS-PAGE figure below. Lane 1 contains an unknown sample. Lane M contains a mixture of the following proteins (listed alphabetically). M 1 P1 - - Protein Bovine carbonic anhydrase Bovine milk aprotinin Bovine milk lactalbumin Bovine serum albumin Beta-galactosidase Chicken egg ovalbumin Rabbit muscle myosin Soybean trypsin inhibitor Molecular Mass 29,000 6,500 14,200 66,000 116,000 45,000 205,000 20,000 - - P3 - P4 L 19. The wild type (normal) human B-chain hemoglobin protein has a...
What is the price-earnings ratio? Explain the difference between it and the dividend yield. Why is...
What is the price-earnings ratio? Explain the difference between it and the dividend yield. Why is this difference important?
1. Figure I shows an SDS-PAGE gel. A) Rank the 3 proteins by size, from largest to smallest. Explain why this trend is observed in SDS-PAGE gels. B) What is the purpose of SDS in SDS-PAGE? C) Sample L is the ladder. What is its purpose? D) Typically, PA (polyacrylamide) is used as the gel for protein electrophoresis, whereas agarose is used for DNA electrophoresis. Explain why a different gel material is used, Specifically referring to the pore size of...
parts a,b, c please
3. Sodium dodecyl sulfate (SDS) polyacrylamide gel electrophoresis a. After pouring the SDS polyacrylamide gel, you realize that instead of 2 ml, you used 4 ml of 30% acrylamide/bisacrylamide solution for the preparation of the separating gel (in both cases for 5 ml, total gel volume). How would this affect the separation of your proteins during SDS PAGE? Explain your answer! b. You have to remake the gel and are now making sure just to add...
Why are proteins heat denatured prior to analysis in SDS-PAGE? Select all answers that apply. Denaturation of the protein is necessary so that proteins run proportionally to their size, based on the interaction of SDS with the unfolded protein. Heat is used to hydrolyze the peptide bonds of the protein. The heat step allows the proteins to unfold, enabling the protein chain to be coated with SDS molecules. Heat is used to hydrolyze disulfide bonds. QUESTION 2 1.5 points Saved...
1. Explain the difference between an intron and an exon. 2. Why do the two possible PCR products differ in size by 300 base pairs? 3. Explain how agarose electrophoresis separates DNA fragments. Why does a smaller DNA fragment move faster than a larger one? 4. What kind of controls are run in this experiment? Why are they important? Could others be used?
The next question concerns the SDS-PAGE figure below. Lane 1 contains an unknown sample. Lane M contains a mixture of the following proteins (listed alphabetically). M 1 P1 - - Protein Bovine carbonic anhydrase Bovine milk aprotinin Bovine milk lactalbumin Bovine serum albumin Beta-galactosidase Chicken egg ovalbumin Rabbit muscle myosin Soybean trypsin inhibitor Molecular Mass 29,000 6,500 14,200 66,000 116,000 45,000 205,000 20,000 - - P3 - P4 L 19. The wild type (normal) human B-chain hemoglobin protein has a...
What is the price-earnings ratio? Explain the difference between it and the dividend yield. Why is this difference important?
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