An antibody is Y-shaped and has __ identical antigen-binding sites, one on each arm of the Y.
举一反三
- The basic principle of radioimmunoassay is A: The radiolabeled antigen reacted with excessive specific antibody B: The radiolabeled antigen reacted with a limited number of specific antibodies C: Radiolabeled antigen and unlabeled antigen reacted competitively with limited amount of specific antibody D: Radiolabeled antigen and unlabeled antigen reacted with excessive specific antibody
- Neighbours ought to respect _______. A: each one B: to each othe C: y themselves D: one anothe
- Ike's utility function is U(x;y) = 25xy. He has 12 units of good x and 8 units of y. Ben's utility function for the same two goods is U(x;y)=4x+4y. Ben has 9 units of x and 13 units of y.
- PCR is used to detect ( ) A: Antigen B: Antibody C: DNA or RNA D: Complement
- The type of blood is decided by ____.() A: The<br/>type of receptor on RBC membrane B: The<br/>type of antigen on RBC membrane C: The<br/>type of antibody on RBC membrane D: The<br/>type of antigen in plasma E: The<br/>type of antibody in plasma