IMMUNOLOGICAL TECHNIQUES QUIZ

Presence of free, circulating virus in the patient

Antigen to HIV only

Antibody to HIV only

Antibodies directed against HLA molecules

Carbon-14

Tritium

Iodine-125

All of these

14 days

42 days

30 days

28 days

double-diffusion

none of these

electroimmunodiffusion

gel diffusion

both (a) and (b)

to detect very small amounts of antigen

commonly to detect trace amounts of drugs.

to detect antibody associated with allergies (IgE)

gel diffusion

all of these

double-diffusion

Ouchterloney technique

prior to reaction with antibody

after reaction with antibody

after reaction with antigen

prior to reaction with antigen

2000 kb and 20kb DNA

20 kb and 2000 kb DNA

1000 kb and l0kb DNA

10 kb and 1000 kb DNA

Particular t-RNA in mixture

Introns within DNA

Particular mRNA in mixture

Protein binding site within DNA

inversely proportional to the amount of antibody placed in each well

proportional to the amount of antigen placed in each well

inversely proportional to the amount of antigen placed in each well

proportional to the amount of antibody placed in each well