A:
Plants Can More Easily Be Grown From Single Cultured Cell Into Which Foreign DNA Has Been Introduced
B:
Plant DNA Is Easier To Clone
C:
Plant Cells Can Be Transformed By Bacterial Infection
D:
DNA Passes More Readily Through The Plant Cell Wall Than Through The Animal Cell Membrane
Explanation
A: Plants can more easily be grown from a single cultured cell into which foreign DNA has been introduced.
Transgenic plants are easier to produce than transgenic animals because plant cells are more easily transformed using techniques such as Agrobacterium-mediated transformation, particle bombardment, or electroporation. Additionally, plants can be regenerated from a single cultured cell, meaning that a single transformed cell can give rise to an entire transgenic plant.
In contrast, animal cells are more difficult to manipulate because they do not have a cell wall to protect them from foreign DNA and other molecules. Furthermore, animal cells are often more complex and specialized than plant cells, making it more difficult to introduce and express foreign genes.
While bacterial infections can be used to transform plant cells, it is not the only method and other methods, such as particle bombardment, are also commonly used. Plant DNA is not necessarily easier to clone than animal DNA, as the difficulty of cloning depends on the specific sequence being cloned. Finally, DNA does not pass more readily through the plant cell wall than through the animal cell membrane. The plant cell wall is actually a barrier to DNA uptake, which is why techniques such as particle bombardment are used to physically force DNA into the cell.
