___________ is the separation of two complementary strands of DNA upon heating above a certain temperature.

A. Multiplexing
B. Thermocycling
C. Annealing
D. Denaturation


Answer: D. Denaturation

Biology & Microbiology

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The mode of action of "Botox" made by Clostridium botulinum is to

a. block release of acetylcholine. b. stimulate excess release of acetylcholinesterase. c. inhibit acetylcholinesterase. d. break down acetylcholine. e. damage nerve fibers.

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The HIV virus contains all of the following components except ________

A) integrase B) double-stranded RNA C) single-stranded RNA D) reverse transcriptase E) protease

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Lian, at 12 years old, was barely 3 feet tall. What hormone might she take to grow taller?

A) growth hormone B) estrogen C) aldosterone D) calcitonin

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An old home remedy for anemia was to drink from a jug of water into which was added a handful of iron nails. Why might this have been effective at treating certain forms of anemia?

What will be an ideal response?

Biology & Microbiology