Where in a T-cell receptor does binding to the antigen occur?
A) in the constant region
B) in the variable region
C) in either the constant or the variable region
D) in both the regions simultaneously
B
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What are some reasons that environmentalists are concerned about the prospect of methane hydrate mining? What will be an ideal response?
What are some other health or exercise practices that you engage in that originated in other cultures?
What will be an ideal response?
Arroyo gullies _____
a. are rectangular b. are triangular c. are V-shaped d. are U-shaped
Which of the following is the correct order of the layers of the atmosphere from the ground up?
A. troposphere, stratosphere, mesosphere, thermosphere B. stratosphere, troposphere, mesosphere, thermosphere C. stratosphere, mesosphere, troposphere, thermosphere D. thermosphere, troposphere, stratosphere, mesosphere