Which of the molecules listed in question 5 are involved in transcription?
A. DNA,
B. mRNA,
C. tRNA,
D. Amino Acids
Answer:
A. DNA,
B. mRNA,
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Bats use high ultrasonic sounds to perceive their environment much like humans use radar. In animals,
this process of detecting objects is called
a. sound reflection navigation. b. extra sensory perception. c. echolocation. d. ultralocation. e. auditory navigation.
What would be the net ?G for the coupling of these two reactions?
For a particular cell at 25°C, the concentration of sucrose is 10 mM on the inside of the cell and 0.5 mM on the outside, whereas the concentration of sodium ions (Na+) is 0.5 mM on the inside of the cell and 10 mM on the outside. The membrane potential is -150 mV. Constants: R = 1.987 cal/mol-K; T = 25°C = 298 K; F = 23,062 cal/mole-volt A) +7.007 kcal/mol B) +3.459 kcal/mol C) ?1.774 kcal/mol D) ?3.459 kcal/mol E) ?7.007 kcal/mol
Aerotolerant anaerobes can use oxygen (when available) in their metabolism to increase the efficiency of ATP production.
a. true b. false
What kind of molecule is thought to have been the first genetic material?
a) DNA b) protein c) microsphere d) carbohydrate e) RNA