Helper phage
a virus which helps a separate and unrelated defective virus reproduce by infecting the same host cell that is already occupied by the defective virus and providing the proteins which the defective virus is missing and needs to complete its life cycle.
The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..
Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, c..
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..
The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..