what is the function of the plasmid
A plasmid which encodes genes for its own transfer.
A plasmid is essentially extra-chromosomal self-replicating DNA
bacterial plasmid/ plasmid ring
A bacterial cell that has taken up plasmid DNA is transformed.
what is the function of the plasmid
F-plasmid (fertility plasmid) of any conjugative bateria or Ti-plasmid (tumor-inducing) of Agrobacterium tumaefaciens.
agrobacterium tumefaciens
It is capable of introducing exogenous genes into plant genomes. T-DNA genes are removed from the Ti plasmid and are replaced with the gene of interest.
Ti plasmid functions to induce turmor or a desease known as "crown gall" to the most dicot (rarely monocot) plants. Transfer DNA or T-DNA will be released during the infection process into the plant cell and integrate with the DNA host. Hence, the plant host is already infected. That's the important function of the Ti plasmid, if there are no such plasmid exist, then the agrobacterium lost its pathogenic function.
octopine
it's used to insert genes into a plant.
Agrobacterium tumefaciens
the Ti plasmid
it is found in the cytoplasm as a simple circle.
T-DNA, which is part of the Ti plasmid, is protected by vir proteins (encoded by vir genes also present on the Ti plasmid) after it is excised. Plant restriction enzymes cannot attack T-DNA bound my vir proteins since the enzyme cannot gain access to the interiors of the DNA.
transfer of gene with the help of Ti plasmid present in Agrobacterium which has T-dna region by which gene van transfer.