Q- Which of the following statements correctly describes the relative risk of a study?
A- Odds that the group with a disease was exposed to a risk factor divided by odds that the group without the disease was exposed
B- Risk of developing disease in the exposed group divided by risk in the unexposed group
C- The difference in risk between exposed and unexposed groups
D- The proportion of risk reduction attributable to the intervention as compared to a control
Q- Which one of the following blotting procedures is the best for studying mRNA levels?
A- Northern blot
B- Southern blot
C- Southwestern blot
D- Western blot
Q- Which of the following is the most likely rout of transmission of herpes simplex virus-1?
A- Congenital transfusion
B- Food contamination
C- Respiratory secretions and saliva
D- Sexual contact and perinatal