Recombinant DNA
The piece of equipment, that introduces DNA into cells via DNA-coated microprojectiles is known as

gene gun
DNA probe
laser
inoculating needle

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Recombinant DNA
Agrobacterium tumefaciens is

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

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Recombinant DNA
Vectors are

molecules that are able to covalently bond to and carry foreign DNA into cells
molecules that help in replication
molecules that protect host cells from invasion by foreign DNA
molecules that degrade nucleic acids

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

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

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