Examine Type 4 hypersensitivities by completing the sentence. One example, infectious allergy, occurs during the ______________ reaction in persons sensitized by tuberculosis infection.
A) Xenografts
B) Delayed
C) Autografts
D) Contact dermatitis
E) MHC 1
F) T
G) Tuberculin
H) Allografts
I) GVHD
J) Type 4
G) Tuberculin
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RF1 and RF2 are active during _______
A. initiation B. elongation C. termination D. peptidyl transfer
A distinguishing feature of Lepidosauria is their:
A. hard shell B. kinetic skull C. external fertilization D. shell-less eggs E. none of the choices provided
A single seed lands on one of a group of isolated islands. Several million years later, its descendants have evolved into
a number of new species on the different islands, representing a variety of trees, shrubs, and vines. This is an example of ____.
a. adaptive radiation b. punctuated equilibrium c. genetic drift d. microevolution e. mutation
If the kingdom Plantae is someday expanded to include the charophytes (stoneworts), then the shared derived characteristics of the kingdom will include _____
1. rings of cellulose-synthesizing complexes 2. chlorophylls a and b 3. alternation of generations 4. cell walls of cellulose 5. ability to synthesize sporopollenin A) 1 and 5 B) 1, 2, and 3 C) 1, 3, and 5 D) 1, 2, 4, and 5