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
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If the sequence of one strand of DNA is CATTACGGG, then the complementary strand would be GTAATGCCC.
Answer the following statement true (T) or false (F)
When a potted house plant is wilting, the addition of water quickly changes the look of the plant. This can be accounted for by which of the following statements:
a. The water creates a hypertonic environment causing the cells to lose water. b. The water creates a hypotonic environment causing cells to lose water. c. The water creates a hypertonic environment causing the cells to gain water d. The water creates a hypotonic environment causing the cells to gain water
Which of the following types of inhibitor permanently alters the enzyme it inhibits? Select all correct choices
A. an irreversible inhibitor B. a competitive inhibitor C. a non-competitive inhibitor D. both an irreversible inhibitor and a competitive inhibitor
Each cell is able to maintain a constant internal
environment. This condition is called a. metabolism. b. homeostasis. c. physiology. d. adaptation. e. evolution