What is the MOST hyperthermophilic archaeon currently known?
a. Methanopyrus kandleri
b. Pyrobaculum aerophilum
c. Staphylothermus marinus
d. Thermoplasma volcanium
Answer: A
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The ________ are drugs that deposit in developing teeth and cause a permanent brown discoloration.
A. tetracyclines B. penicillins C. streptomycins D. cephalosporins E. macrolides
Reverse genetics is a process by which the functions of particular genes are worked out by disabling them. What process is used to knock out a gene or alter its expression?
a. molecular cloning b. genetic mapping c. gene targeting d. linkage analysis
Most golden algae are
a. unicellular and autotrophic. b. unicellular and heterotrophic. c. colonial and autotrophic. d. colonial and heterotrophic. e. multicellular and heterotrophic.
The minimum amount of energy needed to get a chemical reaction started is called the ____ energy
a. activation b. reaction c. enzymatic d. chemical e. triggering