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What is the term for a plasmid that contains a foreign gene?
Recombiant DNA
What is a helper plasmid?
A helper plasmid is a type of plasmid used in molecular biology to aid the replication and maintenance of another plasmid within a host cell. It often contains genes necessary for the replication or transfer of the target plasmid, and can provide other functions such as antibiotic resistance or visualization markers.
What occurs first in the production of a recombinant plasmid?
In the production of a recombinant plasmid, the DNA of interest (insert) and the plasmid vector are both cut with restriction enzymes to create compatible ends. These cut fragments are then ligated together using DNA ligase to produce the recombinant plasmid.
When is a plasmid considered a recombinant plasmid?
A plasmid is considered recombinant when it contains DNA sequences from two different sources that have been artificially combined, often through genetic engineering techniques like restriction enzyme digestion and ligation. This results in a plasmid with modified or additional genetic material compared to its original form.
What could happen if the plasmid were cut at more than one site?
If the plasmid were cut at more than one site, it could result in the fragmenting of the plasmid into smaller pieces. This could lead to difficulties in maintaining the integrity of the plasmid during cloning processes, affecting the stability and functionality of the plasmid. Additionally, it may disrupt the insertion of foreign DNA or hinder the replication of the plasmid in host cells.
