DNA is charged and _fragments travel faster than positively, shorter, longer negatively, shorter, longer negatively, longer, shorter positively, longer, shorter fragments within a gel during gel electrophoresis.

DNA is charged and _fragments travel faster than positively, shorter, longer negatively, shorter, longer negatively, longer, shorter positively, longer, shorter fragments within a gel during gel electrophoresis.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter10: Biotechnology

Section: Chapter Questions

Problem 2RQ: n gel electrophoresis of DNA, the different bands in the final gel form because the DNA molecules...

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Crime Scene Investigation

A crime scene refers to a place where a crime has occurred. The purpose of crime scene investigation (CSI) is to analyze the complete scene and catch the culprit based on the pieces of evidence collected from the place of crime. The people involved in this process are referred to as crime scene investigators.

Question

DNA is charged and
fragments travel faster than
positively, shorter, longer
negatively, shorter, longer
negatively, longer, shorter
positively, longer, shorter
_fragments within a gel during gel electrophoresis.

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n gel electrophoresis of DNA, the different bands in the final gel form because the DNA molecules _______. a. are from different organisms b. have different lengths c. have different nucleotide compositions d. have different genes
This piece of DNA is cut by EcoRI, the resulting fragments are separated by gel electrophoresis, and the gel is stained with ethidium bromide. Draw a picture of the bands that will appear on the gel.
Gel Electrophoresis is used often in forensics. Look at the following gel to the left. From the evidence DNA, which individual matches the DNA evidence left at the crime scene?
Which of the following statements about gel electrophoresis is false? Choose all the answers that would apply -Smaller DNA fragments travel faster and further during gel electrophoresis. -DNA fragments can be separated based on fragment length. -DNA fragments can be separated based on DNA sequence. -Larger DNA fragments travel faster and further during gel electrophoresis.
During dna electrophoresis.....fragments migrate toward the..... electrode fasterthan .....fragments. small/large,positive or negative,large or small
Which of the following statements about gel electrophoresis is false? Choose all that apply. Smaller DNA fragments travel faster and further during gel electrophoresis. DNA fragments can be separated based on fragment length. DNA fragments can be separated based on DNA sequence. Larger DNA fragments travel faster and further during gel electrophoresis.
DNA is visualized during agarose gel electrophoresis by ______________ . the fact that DNA fluoresces when illuminated with UV light the binding of a fluorescent dye that is easily detectable using radioactive antibodies that specifically bind to DNA the fact that DNA is blue and can be seen when millions of copies are present in a band
A description of the principles of agarose gel electrophoresis of DNA.
Which of the following best describes the process of DNA seqencing. a. DNA is seperated on a gel and the different bands are labled with flouroscent nucleotides and scanned with a laser. b. A laser is used to flurorescently label the nucleotides present with in the DNA , the DNA is run on a gel and then the DNA is droken into fragments c. Nucleotides are scanned with a laser and incrprorated into the DNA that has been seperated on a gel and then DNA is amplified with PCR. d. fragments of DNA are produced in a reaction that lables them with any of four different fluroscent dyes and the fragmented then are run on a gel and scanned with laser e. DNA is broken down into its constituents nucleotides and the nucleotides are then run on a gel and purified with a laser
The concentration of a DNA sample is 40 nano grams per milliliter how many nanoliters will be needed to obtain 0.5 nano grams of DNA
A piece of DNA is cut into four fragments as shown below. A solution containing the four fragments is placed in a single well at the top of an agarose gel. Using the information given below, draw (below the well) how you think the fragments will be aligned on the gel following electrophoresis. Label each fragment with its corresponding letter. Remember, each band on the gel will be the same width, equal to the width of the well at the top of the gel. These should all be in one lane. What is it about the chemistry of DNA that causes it to be uniformly negatively charged?
A piece of DNA is cut into four fragments as shown below. A solution containing the four fragments is placed in a single well at the top of an agarose gel. Using the information given below, draw (below the well) how you think the fragments will be aligned on the gel following electrophoresis. Label each fragment with its corresponding letter. Remember, each band on the gel will be the same width, equal to the width of the well at the top of the gel. These should all be in one lane. What if you had two different DNA fragments that were exactly the same length as measured in base-pairs. Would it be possible to distinguish them using this type of electrophoresis? How would they appear on a gel?