Which Property of Antibodies Is the Basis for Complement Fixation

question 5

Multiple Choice

Which property of antibodies is the basis for complement fixation tests?

• A) The Fc portion of IgG becomes enzymatically active upon antigen binding.
• B) The Fc portion can trigger the classical complement system upon antigen binding.
• C) The Fc portion of the molecule can be modified without interfering with antigen binding.
• D) Antibodies can bind two antigens simultaneously.
• E) Antibodies can neutralize the ability of viruses to infect cells.

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The extra yield an investor anticipates earning by choosing a volatile market portfolio over secure, risk-free investments.

Required Return

Required return is the minimum gain an investor expects to achieve from an investment, accounting for the risk level compared to the return of a risk-free asset.

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