Which bacterial genus is responsible for producing ferrous iron (Fe2+) in groundwater?

A) Alteromonas
B) Aquifex
C) Geobacter
D) Loktanella


Answer: C

Biology & Microbiology

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Chargaff's rules for the pairing of nitrogen bases is  

A.  A = C and G = T. B.  A = T and G = C. C.  A = G and C = T. D.  A+T = G+C.

Biology & Microbiology

The letter “C” in the above figure represents

a. transverse. b. radial. c. tangential. d. elliptical. e. obtuse.

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Which of these is generally considered a benefit of synthetic hormones?

A) effects on kidney and liver B) cardiovascular effects C) increased hostility D) mimicking estrogen

Biology & Microbiology

The sum of all chemical reactions in an organism is called ________

a. catabolism b. anabolism c. exchange reaction sum d. metabolism

Biology & Microbiology