How are viruses used in gene therapy?
a. to attack the immune system
b. to carry new genes into cells
c. to infect disease-causing bacteria
d. to kill cancer cells that have "suic*de genes"

What do nitrifying bacteria convert

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes

What will happen if two of the base pairs of the stand of the dna are switched