The layer of the vertebrate eye where photoreceptors are located is the:
a. lens
b. cornea
c. pupil
d. iris
e. retina
e
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If a DNA fragment is 21,000 bp long, about how many DNA fragments would result after incubation with EcoRI?
A. 3 B. 5 C. 10 D. 20 E. 100
You are working with cells and observe transport of your target protein within a cell. You suspect that sorting conforms to the SNARE hypothesis. You, therefore, expect
A) to eventually identify vesicle-SNAP receptors. B) to eventually identify transport-SNAP receptors. C) an association with clatherin-coated pits. D) the protein molecules were internalized by phagocytosis. E) all of the above
The making and breaking of chemical bonds is called:
A. chemical reactions B. catalysis reactions C. thermodynamic reactions D. entropy reactions E. activation energy reactions
Metapopulation dynamics involve the processes of
A) emigration B) extinction C) character displacement D) All of these. E) A and B