Which of the following statements correctly describes transfection gene therapy?

transfection gene therapy exposes host cells to dna with a healthy gene in a laboratory and is meant to negatively affect the host.
transfection gene therapy inserts a healthy gene into a host thru a virus that is meant to negatively affect the host.
transfection gene therapy exposes host cells to dna with a healthy gene in a laboratory and is meant to positively affect the host.
transfection gene therapy inserts a healthy gene into a host thru a virus that is meant to positively affect the host.

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards.the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen

In 2001, records showed that local stocks of fish were down worldwide. yet, records of harvests indicated that fish were being taken at records rates. what was actually happening?