17q: Semen stains on clothes are identified by?
b. UV light
18q: Lipid detection in a frozen section sample is done with ?
a. Per iodic acid shiff
c. Masson's Trichrome stain
d. Oil Red O stain
19q: A drug addict with vegetations on the tricuspid valve, the most common causative organism is?
b. Staph. aureus
20q: Recall bias is most commonly associated with which type of study?
a. Case control study
b. Cohort study
c. Cross sectional study