Research using transgenic animal models of neurodegenerative diseases not only helps scientists understand the disorders, but also may lead to _____
a. new vaccines
b. Drosophila genome sequencing projects
c. discovery of the environmental causes of schizophrenia
d. identification of the mutant gene that causes Huntington disease
e. new drugs and treatments
e
You might also like to view...
As observed in animal stem cells, plant stem cells are able to
A. exist as mature cells. B. produce nutrients for other cells. C. remain undifferentiated but can divide to produce cells that generate new tissues. D. fight microbial invaders by becoming mobile and phagocytic.
What type of plant would be least affected by the loss of the guard cell function that closes stomata?
A. A desert plant. B. A plant from the plains of the American midwest. C. A rainforest plant. D. A poisonous plant. E. A carnivorous plant.
The glycocalyx of a eukaryotic cell is
A. a protective mechanism against osmotic lysis. B. mostly polysaccharides. C. also called the cell wall. D. the site where many metabolic reactions occur. E. composed of many diverse proteins.
Glucose and fructose are different
a. in the number of carbons they possess. b. in their proportion in sucrose molecules. c. in the way that their atoms are arranged. d. in the number of double bonds they possess. e. both in the way that their atoms are arranged and in the number of double bonds they possess.