Direct DNA transfer method(s) used for plant genetic engineering is(are)(A) microparticle bombardment(B) electroporation(C) polyethylene glycol treatment(D) Agrobacterium-mediated transformation
Question
Direct DNA transfer method(s) used for plant genetic engineering is(are)(A) microparticle bombardment(B) electroporation(C) polyethylene glycol treatment(D) Agrobacterium-mediated transformation
Solution
The direct DNA transfer methods used for plant genetic engineering are:
(A) Microparticle Bombardment: This method, also known as biolistics, involves shooting microscopic particles coated with DNA into plant cells. The DNA can then integrate into the plant's genome.
(B) Electroporation: In this method, an electrical field is applied to plant cells, which increases the permeability of the cell membrane and allows DNA to enter the cell.
(C) Polyethylene Glycol (PEG) Treatment: PEG is used to encourage cells to take up DNA. The PEG causes the cell membranes to become more permeable, allowing the DNA to enter.
(D) Agrobacterium-mediated transformation: This is an indirect method of DNA transfer. Agrobacterium is a bacterium that naturally transfers its DNA into plants. Scientists can manipulate the DNA within the Agrobacterium to include the genes they want to add to the plant. The bacterium then transfers this DNA into the plant. However, as this is an indirect method, it does not fit into the category of direct DNA transfer methods.
So, the direct DNA transfer methods are microparticle bombardment, electroporation, and polyethylene glycol treatment.
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