In humans, dental cavities form when Streptococcus mutans bacteria in the mouth hydrolyze sucrose. Which of the following is (are) the products of this reaction?
A) Glucose and galactose B) Glucose and fructose
C) Starch D) Glycogen
B
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How can microarrays help us understand cellular functions?
a. Microarrays let us study different cells under different conditions. b. Microarrays let us directly measure protein expression in individual cells. c. Microarrays, by hybridizing cDNAs to DNA sequences already present on a chip, let us identify which portions of a genome were being expressed in a cell at a particular time. d. Microarrays let us identify which DNA sequences are present in a particular cell type under certain conditions. e. Microarrays, by hybridizing DNA to cDNA sequences already present on a chip, let us identify which portions of a genome were being expressed in a cell at a particular time.
A genetic element which can replicate autonomously when introduced into a cell grown in culture is a ________
Fill in the blank with correct word.
As the volume of urine in the urinary bladder increases,
A. the transitional epithelial cells lining the bladder change from columnar to flat. B. the number of layers of transitional epithelial cells appears to increase. C. the smooth muscle in the walls of the bladder is stimulated to relax and expand more. D. contractions of skeletal muscles in the bladder wall cause it to release urine into the ureters. E. Both the transitional epithelial cells lining the bladder change from columnar to flat and the number of . layers of transitional epithelial cells appears to increase are correct.
The inflammatory process includes redness, heat, pain, loss of function, and:
a. swelling b. pus drainage c. scarring d. scabbing