Recombinant DNA
A genomic library is

a database where the sequence of an organism's genome is stored
a place where the information of the genetic organization of organisms are kept.
a collection of many clones possessing different DNA fragments from the same organisms bound to vectors
a book that describes how to isolate DNA from a particular organism

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Recombinant DNA
Bacterial cells protect their own DNA from degradation by restriction endonucleases by

deleting all recognition sites from the genome
methylating the DNA at the sites that the enzyme recognizes
having anti restriction endonucleases
not producing any restriction endonucleases

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Recombinant DNA
Agrobacterium tumefaciens is

a fungi that is used to produce antibiotics in large amounts
a disease in humans that causes loss of weight
a bacterium that can be used to introduce DNA into plants
a disease in humans that causes loss of sight

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