The portion of the eye where photoreceptors are located is the ____.
A. lens
B. cornea
C. pupil
D. fovea
E. retina
Answer: E
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Automated nucleotide sequencing machines detect DNA bands by laser induced ________.
Fill in the blank(s) with the appropriate word(s).
The most recent techniques developed in the biological sciences allow the manipulation of DNA with the ultimate goal of intervening directly with the _______ fate of organisms.
A. genetic B. developmental C. adult D. mitotic
Most genetically modified crops carry genes
for
a. herbicide resistance. b. disease resistance. c. nutritional enhancement. d. making human medicines. e. increased yields
What statement best summarizes the nature of scientific inquiry?
A) moral, philosophical, and ethical values will eventually be replaced by rational explanations B) personal experience, insight, and revelation are as valid as experimental data C) once experimentally verified, scientific hypothesis becomes scientific fact D) explanations about nature must be testable in ways that others can repeat