Miller's reaction chamber contained gases intended to simulate the atmosphere of the ancient Earth. Which gas was
NOT included in this chamber?
a. carbon dioxide
b. methane
c. ammonia
d. water vapor
e. hydrogen gas
ANSWER: a
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During gene flow, an influx of deleterious alleles can speed adaptation within a population
a. true b. false
Gene regulation during sporulation in Bacillus subtilis involves both temporal and spatial control.
Answer the following statement true (T) or false (F)
Iron is required for primary production. Which of the following is correct to predict?
a. Iron fertilization of oceans can raise N2 in the atmosphere. b. Iron fertilization of oceans can lower O2 in the atmosphere. c. Iron fertilization of oceans can raise CO2 in the atmosphere. d. Iron fertilization of oceans can lower CO2 in the atmosphere.