What is the underlying molecular cause of Huntington disease?
A. The binding of a normal protein to a mutant protein making it cytotoxic.
B. Two mutant proteins in combination produce a toxic precipitate.
C. Normal proteins fold the wrong way, creating plaques that are cytotoxic.
D. mRNA molecules are degraded before they can be properly translated.
E. tRNA molecules fail to bind strongly enough with their associated amino acids.
A
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Which system is aided by the digestive system's absorption of calcium, potassium and sodium?
a. muscular system b. urinary system c. endocrine system d. skeletal system e. sensory system
An adaptation in one environment may be useless or harmful in different circumstances.
a. true b. false
Which of the following cell types initiates a secondary immune response?
A) natural killer cells B) memory cells C) effector cells D) plasma cells
Without using chemical agents, name two examples of how the bacterial cell wall can be damaged that would result in Gram-positive bacteria showing a Gram-negative result
What will be an ideal response?