CHEM 3330 - Units 1-3 Review

Front

What blood type is indicated by a blood sample that agglutinates with both antigen B and antigen Rh?

Back

B+

Front

What are type lines in fingerprint analysis?

Back

Type lines are features of loops and whorls that consist of two lines that begin parallel and diverge to surround the pattern area.

Front

Which technique is used to develop purple prints from adhesive surfaces?

Back

Gentian violet

Front

What can give a false positive result in peroxidase-based presumptive blood testing?

Back

Horseradish, bleach, and rust can all give false positive results.

Front

Which technique must be photographed quickly because it fades?

Back

Iodine fuming

Front

What is the purpose of blood typing?

Back

To determine an individual's blood group for safe blood transfusions.

Front

What is agglutination in the context of blood typing?

Back

Agglutination is the clumping of blood cells in response to an antigen-antibody reaction.

Front

What is the significance of the Rh factor in blood typing?

Back

The Rh factor determines whether blood is positive or negative, affecting compatibility in transfusions.

Front

What is the role of Gentian violet in forensic science?

Back

Gentian violet is used to visualize fingerprints on adhesive surfaces.

Front

What is the main limitation of iodine fuming in forensic analysis?

Back

Iodine fuming fades quickly, requiring immediate photography.