Epidemiologists at the CDC in Atlanta, GA, have called you in to investigate an increased incidence of leukemia in a remote region of Africa. Shortly after arriving, an RNA virus was isolated from patients and found to induce leukemia in mice. At this point you don't know the mechanism or viral gene product associated with the development of leukemia. One of your lab assistants has isolated a variant of the virus that is missing 20% of the genome of the original virus and does not induce leukemia in mice. a) How would you determine which portion of the genome is associated with the development of leukemia?
b) How would you characterize the viral product from this portion of the viral genome associated with the development of cancer?
c) How would you prove that this viral gene product induces cancer (in laboratory mice, sorry o omvi subjects)?

Differentiation of cells changes the nucleic information. true false

Consider the motion of the balloon and its air contents in terms of momentum. in step 1 above, the total momentum of the balloon and its contents was zero. recall that momentum = mv. both the balloon and the air inside it had a velocity of zero and therefore the total momentum was zero. now think about what happened when the air escaped from the balloon. a certain mass of air accelerated in one direction. in order to keep the total momentum of the system zero, the balloon itself (which has mass) had to accelerate in the opposite direction. use this scenario to you explain why the soda can rotates when the water squirts out of the escape holes. what was your hypothesis concerning the water-filled can? according to your data, do you think your hypothesis was correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. give at least one more example of newton's third law in everyday life.

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?