Answer:
Plasmids enter the plant tissue produce a swelling
Step-by-step explanation:
The phrase which states that plasmids enter cells to produce swelling portrays a harmful effect of genetic engineering.
It implies that the plasmid produces swelling, and gives negative impression of something that is abnormal in the cell.
On the other hand the phrase - tumor plasmids have been used as "taxi cabs" in wide variety of plant cells. Conveys a use for plasmids that is positive.
Plasmids are used as a taxi cabs in plant cells. Acting as a delivery system.