Buttermilk and yogurt are produced by bacteria

that form
a. ethyl alcohol.
b. acetaldehyde.
c. pyruvate.
d. lactate.


e. citrate.


Answer: d

Biology & Microbiology

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The genomes of Arabidopsis thaliana, a small member of the mustard family of plants, and rice, Oryza sativa, have been sequenced. The findings include 

A. the genome for each is almost identical, indicating that they diverged in the fairly recent past. B. they each have very high copy numbers (slightly divergent copies of a gene), probably indicating episodes of polyploidy and/or segmental duplication. C. repetitive DNA, including retrotransposons, was a very small proportion of both genomes. D. more than 90% of the genes in each were particular to plants and not found in animal or fungal genomes.

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In an inverted aquatic biomass pyramid, which organisms are likely found at the bottom?

A. zooplankton B. smelts C. sharks D. phytoplankton E. trout

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The fermentation of 1 glucose yields a NET ATP production of

What will be an ideal response?

Biology & Microbiology

)

A. The suspected pathogen infects animals but not humans. B. The suspected pathogen cannot be cultured in the laboratory. C. There is not a suitable experimental host for the suspected pathogen. D. The suspected pathogen produces disease both in humans and a suitable test animal. E. The disease is polymicrobial, caused by more than one pathogen.

Biology & Microbiology