Monoclonal antibodies bound to toxins are known as ____
a. interleukins
b. immunotoxins
c. antibodies
d. IgT
e. interferons
ANSWER: b
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Homologous chromosomes pair with each other during meiosis, but are misaligned. What is the likely outcome if crossing over occurs?
A. One daughter chromosome contains a gene duplication, the other three are normal. B. One daughter chromosome contains a gene deletion, the other three are normal. C. Two daughter chromosomes contain a gene duplication, the other two are normal. D. Two daughter chromosomes contain a gene deletion, the other two are normal. E. One daughter chromosome contains a gene duplication, one contains a gene deletion, and the remaining two are normal.
Which class of neurons takes nerve signals to the central nervous system?
A. sensory B. interneuron C. motor
How might the removal of a wetland affect a nearby city?
A) Wetlands cause flooding. B) Wetlands reduce flooding. C) Wetlands reduce water quality. D) Wetlands support a rich supply of nutrients.
Which of the following statements apply to freshwater fish?
A) They lose water by osmosis. B) The concentration of solutes in their internal fluids is lower than in the surrounding water. C) They pump out ions via the gills. D) They produce dilute urine.