What are different recognition sites on the same antigen called?
A) antigen
B) variable regions
C) epitopes
D) perforins
E) alleles
Ans: C) epitopes
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. If growers want fruit to drop from trees simultaneously they might apply:
A. auxins B. ethylene C. abscisic acid D. gibberellins E. brassinosteroids
Which of the following is involved in the process of photosynthesis?
a. smooth endoplasmic reticulum b. ribosomes c. stroma d. mitochondria
Microorganisms possess different means in order to avoid host immune components. Which of the following does not help microbe evade the host immune system?
A. Lysozyme B. Proteases C. Cross reactivity with the host D. Antigenic variation E. Capsule
Normal blood pressure is 120/80. What is the top number called and what is happening in the heart?
A. diastolic pressure; ventricles are relaxing B. systolic pressure; ejection of blood from the heart C. diastolic pressure; atria are contracting, ventricles are relaxing D. diastolic pressure; ejection of blood from the heart E. systolic pressure; ventricles are relaxing