What color develops when orcinol reacts with starches in a sample?

a. Blue
b. Blue-green
c. Purple
d. Red


b

Biology & Microbiology

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The Xist gene product

A. is never translated into protein. B. is required for the production of Barr bodies. C. coats the X chromosome with RNA. D. associates with proteins to compact the chromosome. E. All of these statements are correct.

Biology & Microbiology

The human elbow is an example of which kind of joint?

a. synovial joint b. cartilaginous joint c. fibrous joint d. non-fibrous joint e. non-synovial joint

Biology & Microbiology

The asteroid impact of about 65 million years ago led to the extinction of

a. sequoia trees. b. giant redwood trees. c. dinosaurs and some other life forms. d. giant squid. e. undersea creatures similar to the "Loch Ness Monster."

Biology & Microbiology

Sunlight energy drives moisture-laden air aloft at _________ north and south latitude, bringing rains to temperate zone forests.

A. 21 degrees B. 40 degrees C. 60 degrees D. 75 degrees E. 90 degrees

Biology & Microbiology