A biomedical researcher isolated some myeloid progenitor from a healthy volunteer. What cells can be developed from these myeloid progenitors?
a) Macrophage
b) B-cells
c) T-cells
d) Natural Killer
Answer: a) Macrophage
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In humans and other animals, maternal inheritance is characteristic of mitochondrial diseases that often affect ____ phosphorylation
Fill in the blank with the appropriate word.
Why is it a good idea to immunize little boys against rubella?
A. As this is a sexually-transmitted disease, vaccinating girls AND boys early in their lives prevents the spread of the disease in adulthood. B. We want to achieve herd immunity, and there's no reason why only girls would be infected by this virus. By vaccinating the entire population, we achieve a higher degree of herd immunity than is possible by vaccinating only girls. C. Only boys get this disease, and one of the common complications is sterility. D. While this disease is quite strikingly symptomatic in girls, it is completely asymptomatic in boys. Boys can be carriers and transmit it easily to girls they are in close proximity to without realizing it through respiratory secretions. This can lead to large-scale and dangerous outbreaks in the female population.
Which of the following statements best defines an altruistic act?
A. benefits the performer and another individual B. benefits another individual at some cost to the performer C. benefits another, related individual at some cost to the performer D. imposes a cost on the performer and another individual E. imposes a cost on the performer without benefiting another individual
Predators can switch to alternative prey when a prey
species is low in abundance as is shown in a. model I. b. model II. c. model III. d. models I and III. e. all of these models.