Epitopes or antigenic determinants
A. are parts of the antibody molecule.
B. are T cell receptors.
C. are a portion of antigen recognized by antibody.
D. may be approximately 10-25 amino acids in length.
E. are a portion of antigen recognized by antibody AND may be approximately 10-25 amino acids in length.
E
You might also like to view...
Each of the following statements is true for Toxoplasma gondii except that
A. it can cause stillbirth. B. infection often fatal for AIDS patients. C. it is a flagellated parasite. D. it has a narrow host range.
In general, the blastomeres of this region form the endodermal tissues.
A. animal pole B. vegetal pole C. equator region D. membrane
All of the following features are true of primates except
A. they are mammals with grasping fingers and toes. B. they belong to the order containing lemurs, monkeys, and apes. C. they have binocular vision. D. they have prehensile tails.
Which of the following sequences correctly represents the phytochrome signal transduction pathway?
a. red light ? PIF3 activation ? PIF3 into nucleus ? light-responsive gene switched off b. red light ? Pfr to Pr ? Pr into nucleus ? Pr-PIF3 complex ? light-responsive gene regulation c. UV light ? PIF3 into nucleus ? light responsive gene produces phytochrome ? Pr to Pfr d. blue light ? Pfr into nucleus ? Pfr-PIF3 complex ? light-responsive gene regulation e. red light ? Pr to Pfr ? Pfr into nucleus ? Pfr-PIF3 complex ? light-responsive gene regulation