Which of the following does not affect the variable regions of immunoglobulins?
A) class switch recombination
B) gene conversion
C) somatic hypermutation
D) None, they all affect the variable region.
A
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Why do Western European cities typically have low skylines compared to American cities?
A) The economy was not advanced enough to finance tall skyscrapers. B) Soviet planners preferred thick and massive buildings over tall ones. C) Much urban growth occurred before technology made skyscrapers possible. D) Buildings were poorly constructed and did not last long.
If you have two molecules of TiO2, how many oxygen atoms would you have?
A. 4 B. 2 C. 6 D. 3 E. none
How many degrees warmer is the parcel in Yakima than on top of Mt. Rainier?
Take a parcel of air from the top of Mt. Rainier, at 4400 m (14,400 ft), and follow it down to Yakima, Washington, at 300 m (1000 ft). Assume that the initial conditions of the parcel of air are -10°C and 100% RH. What will be an ideal response?
Looking at Figure 10.2.8, which of the following countries gets the least percentage of its protein from meats?
A) Canada B) Mexico C) Argentina D) Brazil E) Mongolia