In nature, the purpose of restriction enzymes is to O A. Protect the bacterium from virus attack by cutting up foreign DNA. O B. Protect bacteria from the DNA of other organisms the bacterium infects. O C. Protect bacteria from virus attack by not allowing the virus to attach to the cell wall. O D. Cut plasmids into smaller fragments O E. Protect bacteria from replicating its DNA at the wrong time.

In nature, the purpose of restriction enzymes is to O A. Protect the bacterium from virus attack by cutting up foreign DNA. O B. Protect bacteria from the DNA of other organisms the bacterium infects. O C. Protect bacteria from virus attack by not allowing the virus to attach to the cell wall. O D. Cut plasmids into smaller fragments O E. Protect bacteria from replicating its DNA at the wrong time.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter18: Dna Technologies: Making And Using Genetically Altered Organisms, And Other Applications

Section: Chapter Questions

Problem 2TYK

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n gel electrophoresis of DNA, the different bands in the final gel form because the DNA molecules _______. a. are from different organisms b. have different lengths c. have different nucleotide compositions d. have different genes
The restriction enzymes used in gene-cloning experiments, which generates sticky ends that can .a. cut the DNA, enter bacterial cellsb. cut the DNA, hydrogen bond with complementary sticky endsc. methylate DNA, enter bacterial cellsd. methylate DNA, hydrogen bond with complementarysticky ends
Restriction enzymes found in bacterial cells are ordinarily useda. during DNA replication.b. to degrade the bacterial cell’s DNA.c. to degrade viral DNA that enters the cell.d. to attach pieces of DNA together.
The function of a restriction enzyme is to a. prevent the movement of DNA outside the nucleus b. separate the DNA double helix c. cut the nucleotide sequence at a specific location in DNA d. proofread DNA for accidental damages and corrects these errors
Which technique rapidly replicates specific DNA fragments without cloning in cells? (a) gel electrophoresis (b) cDNA libraries (c) DNA probe (d) restriction fragment length polymorphism (e) polymerase chain reaction
in Cohen-Boyer's recombinant DNA procedure _______ must be used for both the bacterial DNA and the amphibian DNA _______. a. the same restrictions enzyme, so that the the restriction site are identical in the DNA of each species b. different restriction enzymes, so that the genes outside the restriction site are maintained c. the same restriction enzymes, to ensure that the newly formed DNA can replicate d. different restriction enzymes, to ensure that the newly introducted genes are maintained in the bacterial DNA
Definition of Terms( This is all about Applications of Recombinant DNA) a. Clone b. Plasmids c. Biotechnology d. PCR Amplification e. Detection f. Modified Trait g. Human Genome h. Genetic Modified Organism
Choose the one answer that fits best. Which statement regarding Molecular Biology is NOT correct (videos)? a. Taq Polymerase was isolated from an organism found in Yellowstone Park b. Restriction enzymes leave sticky ends c. DNA sequencing allows us to read DNA sequences d. Restriction enzymes cut DNA at specific sites e. EcoRI and HindII are commonly used polymerases
In 5 sentences only, What are restriction enzymes (RE)? Describe how a RE can be used to develop/design a DNAmarker.
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The activity of restriction enzymes may produce fragments with sticky ends. Sticky ends are a) a type of endonucleases. b) dephosphorylated CpG islands. c) unpaired nucleotides. d) double breaks with blunt ends.