The mutation responsible for Huntington's disease is a
A. missense mutation.
B. nonsense mutation.
C. frameshift mutation.
D. triplet repeat expansion mutation.
D. triplet repeat expansion mutation.
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Describe the path that the blood takes as it travels through the kidney, and the changes that take place in its composition as it moves through each structure of the kidney
What will be an ideal response?
Energy inputs and outputs in chemical
reactions are explained by
a. the first law of thermodynamics. b. the second law of thermodynamics. c. the cell theory. d. the theory of evolution. e. the big bang theory
The eggs released by sponges during reproduction have proteins on their surfaces that prevent sperm from different sponge species from binding to the eggs. What type of reproductive isolation would include this example?
A) gamete compatibility B) hybrid inviability C) mechanical reproductive isolation D) behavioral reproductive isolation
Humans store excess polysaccharides in the form of
a. glycogen. b. cellulose. c. lactose. d. glucose. e. starch.