The greatest expression of the lac operon occurs when lactose levels are _____
A) low and glucose levels are low
B) low and glucose levels are high
C) high and glucose levels are low
D) high and glucose levels are high
Answer: C
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The anterior pituitary secretes FSH and LH in response to the releaser ________
a. testosterone b. melatonin c. gonadotropin-releasing hormone (GnRH) d. estrogen
If the rate stops increasing, what light intensity does it stop increasing at?
a. 0-800 ft-candles b. 800-1600 ft-candles c. 1600-2400 ft-candles
By definition, a nerve is
a. a bundle of sensory, motor, or both types of nerve fibers outside the central nervous system. b. a single extension of a neuron. c. the same as a neuron but within the central nervous system. d. a collection of nerve cell bodies outside the central nervous system. e. a fiber more than ten inches in length.
During alcohol fermentation, yeasts ferment
A) oxygen gas. B) sugar. C) chitin. D) carbon dioxide. E) complex carbohydrates.