On the gel shown below are four DNA samples. Samples A to C are taken from tissues of landslide victims that are being identified, while sample D came from a hair sample brought by a mother looking for the remains of her son. (see img) i.  If similar band patterns in a gel are created using the same restriction enzyme, what does that tell you about the DNA sequence of the samples? ii. In sample C, only two fragments were created. How many restriction sites (regions where enzymes cut) are present in sample C?

I’m having trouble finding which answer would be acceptable can you please help?

Describe the process for shotgun sequencing of a genome. Practice aligning the two sets of sequenced fragments below, to determine the order of the fragments and the complete sequence.

During PCR amplification in preparation for DNA sequencing, why were there different colors at the 3’ ends of the fragments produced? (What did these four colors represent?)

b. After molecular cloning and confirming you properly cloned stripes into the vector shown, you transform bacteria with the plasmid and select out bacteria that contain the plasmid. Now, you want to these transformed bacteria to express the STRIPES. Under what conditions would we need to grow bacteria transformed with this plasmid so that they express STRIPES? Explain your answer, and be sure to describe the important regulatory regions on the plasmid above and what interacts with these regulatory regions in the conditions you have indicated.

A 2.0kb bacterial plasmid ‘BS1030’ is digested with the restriction endonuclease Sau3A; the plasmid map is depicted in the diagram below and the Sau3A (S) restriction sites are indicated. Which of the following DNA fragments do you expect to see on an agarose gel when you run Sau3A-digested plasmid ‘BS1030’ DNA?   a. 250 bp, 450 bp, 550 bp, 1.1 kb, 1.5 kb and 2.0 kb   b. 2.0kb   c. 250 bp, 400 bp, 450 bp, 500 bp and 550 bp   d. 100 bp, 200 bp, 250 bp, 400 bp, 500 bp and 550 bp

All of the following are performed during restriction fragment length polymorphism analysis. 1. splitting of double-stranded into single-stranded DNA 2. gel electrophoresis 3. autoradiography 4. immersion in radioactive probes 5. digestion of DNA with restriction endonucleases 6. use of a positive charge to transfer single-stranded DNA from a gel to a membrane. The correct sequence of these operations is what

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You are trying to clone a gene. You have successfully isolated it from the genomic DNA of an organism using the Hindlll restriction enzyme. You then take a plasmid with a single EcoRI restriction site and cleave it with EcoRI. You combine these two fragments and treat them with DNA ligase. Answer the two questions below. a.(2 points Does the cloning reaction succeed as described? If so, what is the product obtained? b. Explain your answer above.

Restriction endonucleases are bacterial enzymes that cleave duplex (double-stranded) DNA at specific nucleotide sequences. The mode of replication of the animal virus SV40 has been investigated by using restriction endonucleases that cleave SV40 DNA into a number of unique segments. Like most viruses, SV40 DNA is circular. The map positions of the 11 fragments produced by a pair of restriction endonucleases are shown on the next page. Immediately following a 5 or 10 minute pulse of radioactively labeled thymidine, labeled SV40 molecules that have completed replication during the pulse are isolated. These newly replicated DNA molecules are digested by the restriction endonucleases and the resulting fragments are analyzed for the relative amounts of pulse label they contain. The results are in the table below. Assume that at the time the label was added there was a random population of replicating SV40 DNA molecules in all possible stages of synthesis. From the information given below,…