What molecules are released by activated helper T cells?
A. Cytokines
B. Antibodies
C. Immunoglobulins
D. Antigens
Answer: A
You might also like to view...
One reason to study DNA-protein interactions is because many proteins (e.g., regulatory proteins and proteins involved in replication and transcription) directly interact with DNA, and by understanding those interactions, we may be able to inhibit microorganism pathways in the future.
Answer the following statement true (T) or false (F)
How did researchers explain the smaller size of sexual maturity for guppies in some Trinidad streams?
a. Some low-quality streams have small carrying capacities, which forces guppies to reach sexual maturity more quickly b. Smaller streams require that individual fish be smaller at sexual maturity. c. Smaller sexually mature guppies were those that had hybridized with killifish, another small fish found in Trinidad. d. When predators select larger fish, the smaller fish reaching sexual maturity will experience increased fitness.
The term neoplasia refers to cell accumulation. Neoplasia can be caused by
A. cell membrane interactions. B. decreased apoptosis. C. blood clots. D. increased apoptosis.
Which of the following molecules is produced in the intermediate step between glycolysis and the Krebs cycle?
A) citric acid B) acetyl CoA C) ATP D) oxaloacetate E) pyruvic acid