Question

question 10 (1 point) ✓ saved
blood typing tests are performed by taking blood samples and mixing with
antibodies against o type blood, then observing agglutination.
complement with antigen, then observing hemolysis.
rh antibodies with antigen, then observing hemolysis.
antibodies against a or b type antigens, then observing agglutination.
question 11 (1 point) ✓ saved
______ separates antigen into bands, then after the gel is affixed to a blotter, it is
reacted with a test specimen and developed by radioactivity or with dyes.
agglutination testing
double diffusion precipitation testing
immunoelectrophoresis
the western blot test
question 12 (1 point) ✓ saved
______ is the capacity of certain t cells to kill a specific target cell.
cytotoxicity
apoptosis
vaccination
necrosis

Explanation:

• Question 10: Blood typing is based on the presence of A or B antigens. Antibodies against these antigens are used, and agglutination (clumping) is observed. For example, if a person has A antigens, anti - A antibodies will cause agglutination.
• Question 11: The Western blot test first separates antigens by gel electrophoresis (into bands). Then, the gel is transferred (affixed) to a blotter (like nitrocellulose). It is reacted with a test specimen (e.g., antibodies) and developed (using radioactivity or dyes) to detect specific antigens.
• Question 12: Cytotoxicity is the ability of certain T cells (cytotoxic T lymphocytes) to kill specific target cells (e.g., virus - infected cells or cancer cells). Apoptosis is programmed cell death (not specifically T - cell - mediated killing of target cells in the context of this definition). Vaccination is for inducing immunity, and necrosis is cell death due to injury (not a T - cell - mediated specific killing process).

Answer:

• Question 10: antibodies against A or B type antigens, then observing agglutination.
• Question 11: The Western blot test
• Question 12: Cytotoxicity