Find the connection among the words below and choose the letter of th word which is different. O A. agarose powder OB. buffer O C. loading dye O D. Ethidium bromide Find the connection among the words below and choose the letter of th word which is different. O A. DNA ladder B. bands C. base pairs D. visualization
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- Which of the following is not a DNA sequence? a. TAG b. AUGAUUCT d. AAAAAAAAAA e. CGGB. 25mL of 1% Sodium Bicarbonate solution was created and the ph was taken. Whic value below represents the most accurate representation fo the pH of the solution? a. pH 8.5 b. pH 7.0 c. pH 6.5 8. Agarose gel electrophoresis was performed below. Lane 1 is a 100 base pair DNA ladder. 1 2 3 Divong 20dut arinat & bak A. Does Lane 2 or lane 3 show a larger DNA fragment? B. Given the Lane 1 DNA ladder sizes, what is the approximate size (in base pairs) of the amplicon in Lane 3?DNA fragments that are 500 bp, 1000 bp, and 2000 bp in length are separated by gel electrophoresis. Which fragment will migrate farthest in the gel? a. The 2000-bp fragment b. The 1000-bp fragment c. The 500-bp fragment d. All will migrate equal distances.
- 50 find the connection among the words below and choose the letter of the word which is different 1. a. gel docb. ethidium bromidec. uv lightd. transilluminator 2. a. PCR productb. dnac. wellsd. tracking dyeWhat is the purpose of Bromophenol Blue in electrophoresis? a. To follow the progress of the gel as it is running b. It acts as a DNA size ladder or DNA size standards. c. To allow the electric current to move through the gel. d. To visualize the DNA after the gel has finished running. What is the purpose of acetate in TAE? a. It helps to maintain the pH of the buffer b. To carry electrons to allow the electric current to travel through the gel. c. It is used to stop the action of DNases d. It is required to see the DNA on a UV light.What should you do when loading the DNA sample into the gel well? A. Ensuring that the DNA samples are properly loading into the gel well B. Changing your piper te top in between DNA samples C. Load the DNA ladder into the first time D. All of the above
- Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode? A. DNA is positively charged to attracted to the negative end of the unit B. the agarose gel is positively charged C. the agarose gel in negatively charged D. DNA is negatively charged so attracted to the positive end of the unitDNA fingerprinting analyzes the DNA from individuals on the basis of the occurrence of in their genomes. a. repetitive sequences b. abnormalities in chromosome structure c. specific genes d. viral insertionsHow many base pairs are there in a 6.8 nanometer DNA sequence? A. 5 B. 10 C. 15 D. 20
- What is the use of Liquid soap in DNA extraction?* A. binds cell membrane and nuclei B. dissolves DNA C. binds phosphate groups and salt D. none of the given optionsWhich of the following is not a part of the Sanger method tosequence DNA?a. dideoxynucleotides b. DNA polymerase c. electrophoresis d. reverse transcriptaseThe sequence of one strand of DNA is ACCTGC. What is the sequence of the complimentary strand of DNA? A. ACCTCG B. TGGACG C. UGGAGC D. ACCUGC