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Standard XIII
Biology
Plasmids
Can a bacteri...
Question
Can a bacterial cell survive without a plasmid DNA?
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Solution
Bacterial cell:
Plasmids are double-stranded DNA molecules that offer a bacterial cell significant genetic benefits.
The answer is that bacterial cells can exist without plasmid DNA.
The term "plasmid" refers to the extrachromosomal genetic component of the bacterial cell that is distinct from chromosomal DNA.
These are little double-stranded, circular DNA molecules with the ability to replicate on their own.
Plasmids have several benefits for bacteria, yet they are not necessary for the survival of bacteria.
It is asserted that plasmid is only necessary for bacterial cells in stressed circumstances.
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Similar questions
Q.
Has bacterial cell always got a circular DNA except the plasmids?
Q.
Bacterial colonies that have a foreign DNA fragment inserted in to the plasmid will appear white because:
Q.
From the below list, which of the following is the most logical sequence of steps for splicing foreign DNA into a plasmid and inserting the plasmid into a bacterium?
(i) Transformbacteria with recombinant
DNA molecule.
(ii) Cut the plasmid DNA using restriction
enzymes.
(iii) Extract plasmid DNA from bacterial cells.
(iv) Hydrogen-bond the plasmid DNA to nonplasmid DNA fragments.
(v) Use ligase to seal plasmid DNA to nonplasmid DNA.
Q.
Can we survive without DNA?
Q.
Assertion: Small circular DNA in bacterial cell are plasmids.Reason: Plasmids confers certain unique characters of bacteria
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