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In the formation of recombinant DNA. a restriction endonuclease cuts a bacterial plasmid to give sticky ends. The DNA segments that are to be added to the plasmid are cleaved with the same restriction endonuclease. What are sticky ends and why is it important that the target DNA and the plasmid it will be incorporated into have complementary sticky ends?
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Fundamentals of General, Organic, and Biological Chemistry, Books a la Carte Edition; Modified Mastering Chemistry with Pearson eText -- ValuePack ... and Biological Chemistry (4th Edition)
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- How many statements are right? 1. operator is a protein (transcription factor) that interacts with a DNA sequence immediately downstream the promoter region 2. Type I restriction endonucleases cleave DNA at specific sites, close to recognition sequence 3. Type II restriction endonucleases cleave DNA within or at short specific distances from the recognition site 4. Type IIl restriction endonucleases Cleave DNA at random sites, cleave DNA near the recognition sequence 5. Type IV restriction endonucleases: Target only methylated DNA 3. 1 2. 4. 5.arrow_forwardIn the formation of recombinant DNA, a restriction endonuclease cuts a bacterial plasmid to give sticky ends. The DNA segments that are to be added to the plasmid are cleaved with the same restriction endonuclease. What aresticky ends and why is it important that the target DNA and the plasmid it will be incorporated into have complementary sticky ends?arrow_forwardDescribe how restriction enzymes like EcoR1 are used to create recombinant plasmids and what the process is for using these plasmids to replicate a piece of target DNA. Include information about how to create sticky ends, the makeup of the bacterial plasmid and how to tell if the gene was successfully inserted in the plasmid and if the plasmid has been transformed by the bacteria. You may use a drawing to enhance your description.arrow_forward
- A restriction endonuclease breaks a bacterial plasmid into sticky ends to create recombinant DNA. The same restriction endonuclease is used to cleave the DNA segments that will be added to the plasmid. What are sticky ends, and why are complementary sticky ends on the target DNA and the plasmid it will be inserted into so important?arrow_forwardWhat is/are the attributes that make nucleotide excision repair (NER) and base excision repair (BER) similar and/or different from each other? Select the correct response: The NER pathway is the only one that can remove DNA lesions in the strand regardless of their size which is followed by attaching the correct strand, then sealed by a DNA ligase. They both use the enzyme DNA glycosylases that recognizes the damaged DNA segments and proceed with repairing the faulty base in the strand. They differ NER only repairs purine bases while BER repairs pyrimidine bases. They both remove the damaged parts of the DNA where the BER pathway corrects only the identified damaged bases which are usually non-bulky lesions. The NER pathway, on the other hand, repairs the damage by removal of bulky DNA adducts which is a short-single stranded DNA segment. They both utilize the enzyme photolyase to reverse the damages created by the faulty section of the DNA. They both remove the damaged parts of the…arrow_forwardA.How could endonucleases interfere with the transformation procedure? B. Does supercoiled or nicked plasmid get transformed more efficiently? Why?arrow_forward
- Extreme UV exposure leads to the SOS response in bacteria. By what mechanism does the SOS response function? Answer choices induction of photolyase and the addition of white light to remove the thymine dimer destruction of lexA, which leads to expression of an alternate, error-prone DNA polymerase homologous recombination repair non-homologous end joining exinuclease removal of a segment of DNA including a thymine dimer, followed by the replacement of DNA using the complementary strand of DNAarrow_forwardPreparing plasmid (double-stranded, circular) DNA for sequencing involves annealing a complementary, short, single stranded oligonucleotide DNA primer to one strand of the plasmid template. This is routinely accomplished by heating the plasmid DNA and primer to 90 °C and then slowly bringing the temperature down to 25 °C. Why does this protocol work?arrow_forwardYou first need to create a plasmid. What are the minimal components necessary to develop this plasmid? In addition to these components, please draw the plasmid. In this illustration, I am looking for the components, the direction of transcription (i.e., the direction the genes will be transcribed), and what should be transcribed last? Also, where would you specifically insert the P. falciparum gene in this plasmid, and why are you checking reading frames in your gene? Finally, please name your plasmid using the correct nomenclature too. You are excited you have this new plasmid; you want to transfect it into P. marinus and provide it as an oral vaccine to laboratory mice. However, even though your supervisor enjoys your enthusiastic attitude, they do not allow you to do this quite yet because all you have is this plasmid. Why doesn’t your supervisor allow you to use the laboratory mouse for this research regarding animal welfare guidelines? Your answer should include the 3 R’s of…arrow_forward
- Calculate the purity of the plasmid DNA. Do you think the plasmid is pure? Why?arrow_forwardChoose the right combination of components required to set up a polymerase chain reaction from the following: Template RNA, two primers, NTPs, and DNA polymerase Template DNA, two primers, dNTPs, and DNA ligase Template DNA, two primers, NTPs, and DNA ligase Template DNA, two primers, dNTPs, and DNA polymerasearrow_forwardWhat is complementary base pairing? Be able to figure out the nucleotide sequence of the 2nd strand of DNA if you’re given the first (as happens when DNA replicates); or the RNA sequence that would pair with a DNA sequence (as happens during transcription). What is Biotechnology? Recombinant DNA? What is a restriction enzyme and how is it used to make recombinant DNA? What is a transgenic animal? Transgenic crops? What is Forensics? Why are the following things important in forensic (or medical genetic) testing: PCR? STRs? What is CODIS? What is a multifactorial trait? A polygenic trait? Some examples of each? How do they differ from Mendelian traits? What is cancer? How do cancer cells differ from normal cells? Why is control of the cell cycle crucial? Genetic influences in developing cancer: what is an oncogene? a tumor suppressor? Difference between a benign and a malignant tumore? Metastasis?arrow_forward
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
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