Q- A study found that incidence of lung cancer in smokers is 230/100,000 and in non-smokers is 71/100,000. What is the relative risk for smokers?
Q- A patient with cystic fibrosis is treated by gene therapy. Which of the following types of cells should be targeted as host cells?
A- Epithelial cells
B- Hemopoietic stem cells
C- Germ cells
Q- Which of the following should be added to premature infants of breast-feeding mothers after 2 month of age?
C- Vitamin C