linkedin post 2016-01-27 05:41:04

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HANDLING FOREIGN DNA. " Because of the universality of the genetic code, the polymerases of one organism can accurately transcribe a gene from another organism. For example, different species of bacteria obtain antibiotic resistance genes by exchanging small chromosomes called plasmids." http://www.dnaftb.org/34/ View in LinkedIn
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linkedin post 2016-01-27 05:38:15

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TWO PLASMID TYPES. "Classically, plasmids can be placed into two distinct categories, based on their ability to transfer themselves from one individual to another: the conjugative plasmids, which carry the genes enabling the transfer themselves, and mobilizable plasmids, which require other means, such as genes located on other plasmids." https://lnkd.in/exyreqd View in LinkedIn
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linkedin post 2016-01-27 05:34:32

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PLASMID ADDICTION SYSTEMS (PAS). In biotechnology, "Plasmids are frequently used to introduce the formation of additional proteins or even for the establishment of complete metabolic pathways...(PAS) preventing the survival of plasmid‐free cells due to selective killing." https://lnkd.in/eNgPKMn View in LinkedIn
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linkedin post 2016-01-29 06:20:22

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DIRECT INTERACTION. "Many plasmids are incompatible with each other, meaning that when both are present in a given host, one of the two will fixate at the expense of the other. It is now known that such incompatibility is mainly due to mutual susceptibility to each plasmid’s replication and partition control system." https://lnkd.in/e8wKCHY View in LinkedIn
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linkedin post 2016-01-27 05:30:32

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SUICIDE PLASMIDS are a "specific DNA fragment is inserted into a plasmid which is then introduced into a recipient strain and placed under conditions where the plasmid cannot replicate. Since the plasmid cannot replicate, selection for some property of the plasmid, such as an antibiotic resistance marker, results in isolates that have integrated the plasmid into the host chromosome via homology between the cloned fragment and the corresponding region of the recipient chromosome." https://lnkd.in/eQqvakJ View in LinkedIn
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linkedin post 2016-01-29 06:08:54

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GENERATIONAL SURVIVAL. "To be maintained across generations of bacterial cells, plasmids must ensure that they replicate at least once during the life cycle of their host. As a result, most plasmids have evolved systems to enable and control their replication." https://lnkd.in/e8wKCHY View in LinkedIn
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