Which portion of the blood is used for the Elisa test? Explain.

What do hemolysis and crenation help explain?

You are tasked with measuring the quantity of prostate specific antigen (PSA) in a urine sample using an ELISA strategy. Describe and schematically depict how you would perform the test given the following materials: anti-PSA, biotinylated anti-PSA, streptavidin-HRP, HRP substrate kit (HRP = horse radish peroxidase).

Q1/ Choose the Right Answer 1. Biomaterials science is not significant monetarily, but the magnitude of the field is extremely important since biomaterials are used to save millions of lives. a) Ttrue , b) False

Based on these blood agar results, can you identify what type of hemolysis are occurring in these tests? Gamma, beta, or alpha? Not gamma, not beta, not alpha?

The direct ELISA test requires     only one antibody     only one antigen     both primary and secondary antibody     only secondary antibody conjugated with enzyme system

Due to a clerical error, several blood samples at a blood bank were not labeled. The three list below were conducted on each sample to identify each blood type. Test 1 = Unknown sample mixed with “anti-A” serum (contains type A antibodies) Test 2 = Unknown sample mixed with “anti-B” serum (contains type B antibodies) Test 3 = Unknown sample mixed with “anti-Rh” serum (contains type Rh antibodies) (A) When unknown sample A was tested, agglutination (clumping) of red blood cells occurred in test 1, 2 and 3. The blood type of sample A is… (B) When unknown sample B was tested, no agglutination (clumping) of red blood cells occurred in any tests. The blood type of sample B is… (C) When unknown sample C was tested, agglutination (clumping) of red blood cells occurred in test 2 and 3, but not 1. The blood type of sample C is…

Does this picture show a positive or negative Sudan IV test?

true or false Primary cells are isolated directly from tissues and have not been modified ex vivo using an immortalization protocol.

If a blood sample agglutinates when mixed with Anti-A serum, but does not agglutinate when mixed with Anti-B serum, what is the blood type of that sample? Group of answer choices B A AB O