Medically important bacteria are often
A. grown on agar containing blood.
B. grown at 37?C.
C. grown on agar containing chocolate.
D. grown at a pH of 5.
E. grown on agar containing blood AND grown at 37?C.
E
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Use the following study to answer the following question(s): A researcher applies varying amounts of fertilizer (0, 2, 4, 8, 10 units) to 50 potted tomato plants. All other variables that may affect the outcome (watering, temperature, sunlight, plant size, etc.) are kept the same from pot to pot. At the end of the growing season, the tomatoes grown on each plant are weighed to determine which fertilizer level produced the largest tomato yield.Which variable is the independent variable?
A. The fertilizer amount B. The tomato yield at the end of the growing season C. The plant size at the end of the growing season D. The temperature
Complementary DNA (cDNA) probes are produced using
A. RNA polymerase. B. DNA ligase. C. restriction endonucleases. D. reverse transcriptase.
________ proteins stabilize partially folded parts of proteins in their correct form.
A) Chaperone B) Signal sequences C) Proteasomes D) Ubiquitin
Type II survivorship curves
a. are characteristics of humans and elephants. b. typify a population in which all ages have an equal chance of survival. c. indicate a high mortality rate in the very young. d. show that very few young are produced, that each is given parental support, and that most individuals live a relatively long life and die of old age. e. are typical of annual plants.