Concept explainers
To describe: The reasons that the presence of restriction enzymes inside the bacterial cell does not affect bacterial chromosomes.
Introduction: A restriction enzyme is a form of a protein that is produced by bacteria. These enzymes are also termed as “restriction endonucleases.” The restriction enzyme plays an important role in the production of recombinant DNA.
To explain: The reasons behind the presence of restriction enzymes inside the bacterial cell.
Introduction: A restriction enzyme is a form of a protein that is produced by bacteria. These enzymes are also termed as “restriction endonucleases.” The restriction enzyme plays an important role in the production of recombinant DNA.
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Chapter 13 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
- Cloning Genes Is a Multistep Process In cloning human DNA, why is it necessary to insert the DNA into a vector such as a bacterial plasmid?arrow_forwardCloning Genes Is a Multistep Process Which enzyme is responsible for covalently linking DNA strands together? a. DNA polymerase b. DNA ligase c. EcoRl d. restriction enzymes e. RNA polymerasearrow_forwardCloning Genes Is a Multistep Process The following DNA sequence contains a six-base sequence that is a recognition and cutting site for a restriction enzyme. What is this sequence? Which enzyme will cut this sequence? (See Figure 13.5 for help.) 5 CCGAGGAAGCTTAC 3 3 GGCTCCTTCGAATG 5arrow_forward
- What carries a gene from one organism into a bacteria cell? a. a plasmid b. an electrophoresis gel c. a restriction enzyme d. polymerase chain reactionarrow_forwardFor a molecular cloning experiment using the bacterial strain E. coli K12 is used to insert the gene rspL with pUC19. The first attempt utilized the restriction enzyme BamHI which did not produce any transformations. The second attempt utilized the restriction enzymes BamHI and EcoRI. Why was BamHI used first and what difference did the EcoRI do?arrow_forwardRestriction enzymes and DNA ligase play essential roles in DNA cloning. How is it that a bacterium that produces a restriction enzyme does not cut its own DNA? Describe some general features of restriction sites.arrow_forward
- What is a cloning vector? A. The DNA probe used to locate a particular gene in the genome. B. An agent such as plasmid, used to transfer DNA from an in vitro solution into a living cell. C. The laboratory apparatus used to clone genes. D. An enzyme that cuts DNA into restriction fragments.arrow_forwardWhat is the enzymatic function of restriction enzymes? Group of answer choices a. to cut nucleic acids at specific sites b. to join nucleotides during transcription c. to add new nucleotides to the growing strand of DNA d. to repair breaks in sugar - phosphate backbonesarrow_forwardAs you know, restriction enzymes evolved in different bacterial species independently. The adaptive significance of having a restriction enzyme is that the bacterium has the ability to cut the injected viral DNA into small segments. This destruction of viral DNA prevents the virus from taking over the bacterial cell and killing the cell. What is one benefit of using a restriction enzyme with staggered ends (such as EcoRI) to cut both the DNA insert and the plasmid? Which types of cut sites (staggered with “sticky ends” or blunt ends) are most useful in cloning DNA? Would you expect restriction enzymes in different bacteria genera (Streptococcus, Lactobacter, Escherichia) to have the same recognition sites (DNA sequences). Why or why not?arrow_forward
- Both cloning and PCR can be used for making copies of DNA. What is the advantage or limitation of one over the other?arrow_forwardRestriction enzymes look for palindromic sequences of DNA to cut, how does it recognize those sequences? Does it bind to them and read their strands? Does it work with both strands of the DNA or does it just need one strand to work its process?arrow_forwardA restriction enzyme digests DNA into fragments.term the technique used to check the progression of this enzyme and separate DNA fragments.arrow_forward
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