You observe the following: Your Your friend's Gel Gel 120 kDa 100 kDa 120 kDa 100 kDa -80 kDa 80 kDa 40 kDa 40 kDa - a. You and your friend analyzed the same protein sample in your gels. Why are your results different? Explain briefly which gel is the correct representation of the SDS-PAGE & Western blot, and why? b. Explain briefly the size of protein observed in the chromatography column and the Western blot. Are they different or the same, why? c. If the primary antibody to Protein A was made in a mouse, describe the details of the secondary antibody used in the Western blot analysis?

You observe the following: Your Your friend's Gel Gel 120 kDa 100 kDa 120 kDa 100 kDa -80 kDa 80 kDa 40 kDa 40 kDa - a. You and your friend analyzed the same protein sample in your gels. Why are your results different? Explain briefly which gel is the correct representation of the SDS-PAGE & Western blot, and why? b. Explain briefly the size of protein observed in the chromatography column and the Western blot. Are they different or the same, why? c. If the primary antibody to Protein A was made in a mouse, describe the details of the secondary antibody used in the Western blot analysis?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter13: An Introduction To Genetic Technology

Section: Chapter Questions

Problem 20QP: Analyzing Cloned Sequences A base change (A to T) is the mutational event that created the mutant...

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Suppose you wanted to study genes controlling thestructure of bacterial cell surfaces. You decide tostart by isolating bacterial mutants resistant to infection by a bacteriophage that binds to the cellsurface. The selection procedure is simple: Spreadcells from a culture of sensitive bacteria on a petriplate, expose them to a high concentration ofphages, and pick the bacterial colonies that grow.To set up the selection you could (1) spread cellsfrom a single liquid culture of sensitive bacteria onmany different plates and pick every resistant colony; or (2) start many different cultures, eachgrown from a single colony of sensitive bacteria,spread one plate from each culture, and then pick asingle mutant from each plate. Which methodwould ensure that you are isolating many independent mutations?
Im having trouble answering this question. What type of cells can be altered by GETs like CRISPR and what types of cells cannot and why is this so?
Analyzing Cloned Sequences A base change (A to T) is the mutational event that created the mutant sickle cell anemia allele of beta globin. This mutation destroys an MstII restriction site normally present in the beta globin gene. This difference between the normal allele and the mutant allele can be detected with Southern blotting. Using a labeled beta globin gene as a probe, what differences would you expect to see for a Southern blot of the normal beta globin gene and the mutant sickle cell gene?
To determine the reproducibility of mutation fre-quency measurements, you do the following experiment.You inoculate each of 10 cultures with a single E. coli bac-terium, allow the cultures to grow until each contains 106cells, and then measure the number of cells in each culturethat carry a mutation in your gene of interest. You were sosurprised by the initial results that you repeated the experi-ment to confirm them. Both sets of results display the sameextreme variability, as shown in Table Q5–1. Assuming thatthe rate of mutation is constant, why do you suppose thereis so much variation in the frequencies of mutant cells indifferent cultures?
A purified recombinant protein is analyzed for molecular weight by SDS-PAGE at pH 8.5. From the protein sequence deduced from the gene that was expressed in bacteria, the protein is expected to have a molecular weight of 44,000. However, the molecular weight of the protein is found by SDS-PAGE to be 52,000. Explain the reason or reasons for this difference in molecular weight. What calculation could you make to help explain this discrepancy?
Which one of the following statements is true? a. Dideoxynucleotides signal the end of DNA replication in a cell b. None of the provided answers are true c. The DNA sequence determined by an autoradiogram should be identical to the template strand DNA sequence d. The probe hybridization solution used in the Sothern blot technique is approximately pH 10.0 e. The transfer buffer used in the Southern blot technique is approximately pH 7.0
Which of the following pieces of information about our recombinant DHFR protein do you predict to obtain from Western Blot analysis? A) Protein size B) Protein sequence C) Protein function
Ehat primer sets could be amplify the following DNA sequence? AATACGTCGCATGGggatccttttttatgcatg
Which of the proteins analyzed by Western blot did you expect to travel the slowest/least distance on the gel? His-tagged DHFR or GST-DHFR-His
Consider a partial restriction digestion, in which genomic DNA is exposed to a small, limiting amount ofa restriction enzyme for a very short period of time.a. Would the resultant fragments be longer or shorteror the same size as those produced by a completedigestion?b. If you prepared genomic DNA from a tissue sample containing millions of cells, would the fragments produced by partial digestion of DNA fromall of these cells be the same or different?
Describe the steps, starting from an endonuclease digested DNA sample, to complete a Southern blot experiment. What difference would a Northern blot have?
Utilizing Hind III and EcoR V Restriction Enzyme with Pet41 and the following gene of interest... a tgaaacaaca aaaacggctt tacgcccgat tgctgacgct gttatttgcg 61 ctcatcttct tgctgcctca ttctgcagca gcggcggcaa atcttaatgg gacgctgatg 121 cagtattttg aatggtacat gcccaatgac ggccaacatt ggaagcgttt gcaaaacgac 181 tcggcatatt tggctgaaca cggtattact gccgtctgga ttcccccggc atataaggga 241 acgagccaag cggatgtggg ctacggtgct tacgaccttt atgatttagg ggagtttcat 301 caaaaaggga cggttcggac aaagtacggc acaaaaggag agctgcaatc tgcgatcaaa 361 agtcttcatt cccgcgacat taacgtttac ggggatgtgg tcatcaacca caaaggcggc 421 gctgatgcga ccgaagatgt aaccgcggtt gaagtcgatc ccgctgaccg caaccgcgta 481 atttcaggag aacacctaat taaagcctgg acacattttc attttccggg gcgcggcagc 541 acatacagcg attttaaatg gcattggtac cattttgacg gaaccgattg ggacgagtcc 601 cgaaagctga accgcatcta taagtttcaa ggaaaggctt gggattggga agtttccaat 661 gaaaacggca actatgatta tttgatgtat gccgacatcg attatgacca tcctgatgtc 721 gcagcagaaa ttaagagatg gggcacttgg tatgccaatg aactgcaatt ggacggtttc 781…