Forensic blood typing

Which of the following are the four main blood types categorized by the ABO blood group system?

• A, B, C, D

• A, B, AB, O

• A, B, Rh+, Rh-

• O, AB, A+, B+

Which blood type contains antibodies against both A and B antigens in its plasma?

• Group A

• Group B

• Group AB

• Group O

What phenomenon occurs when antibodies and antigens are in equivalence, causing blood samples to form clumps?

• Hemolysis

• Agglutination

• Coagulation

• Precipitation

Why is blood typing considered less specific than DNA profiling for identifying individuals in forensic investigations?

• Blood typing is a more complex process.

• Blood typing can only identify the presence of blood, not its type.

• Many people share the same blood type, making it difficult to pinpoint one individual.

• DNA profiling is a newer technology.