When dimethylsulfoniopropionate (DMSP) is aerobically degraded in a marine environment, which product is most often used to support growth?
A) acrylate
B) dimethyl disulfide
C) dimethyl sulfoxide
D) methanethiol
Answer: A
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The genetic code is expressed differently in bacterial and archaeal cells than in eukaryotic cells.
Answer the following statement true (T) or false (F)
Most of the Earth’s phosphorous is in the form
of
a. phosphoric acid. b. elemental phosphorous. c. phosphate. d. phosphorous cations. e. carbonate
Drosophila (fruit flies) usually have long wings (+) but mutations in two different genes can result in bent wings (bt) or vestigial wings (vg). If a homozygous bent wing fly is mated with a homozygous vestigial wing fly, which of the following offspring would you expect?
A) All +bt +vg heterozygotes B) 1/2 bent and 1/2 vestigial flies C) All homozygous + flies D) 3/4 bent to 1/4 vestigial ratio E) 1/2 bent and vestigial to 1/2 normal
Which of the following is a genetic mutation that affects males more than females?
A. nearsightedness B. red-green color blindness C. farsightedness D. astigmatism E. blindness