How does the body recognize "self" cells compared to "nonself" cells?
A. "Self" cells contain a triple layer of phospholipids on their plasma membranes.
B. "Self" cells contain spikes on their outer surface.
C. "Self" cells are marked by glycoproteins called major-histocompatibility complexes (MHCs).
D. "Self" cells contain cytokines on their cell surfaces.
Answer: C
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a. Plastic foam b. Coolants in appliances c. Aerosol cans d. Solvents e. Exhaust from automobiles
If the death rate of a population exceeds the birth rate of a population, ____
a. the growth rate will remain static b. the population will grow c. the environment will become overexploited d. an exponential growth curve will result e. the population will decrease in size
The goal of pharmacogenomics is to identify genes related to human diseases
a. True b. False
What are the differences between metaphase I and metaphase II of meiosis?
What will be an ideal response?