Mass-processed ground meat is a particularly common source of infection with EHEC

Indicate whether the statement is true or false.


Answer: TRUE

Biology & Microbiology

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In the next phase of binary fission after the phase shown in this diagram, a temporary structure forms in the space within the FtsZ ring shown here. What is that structure called?


a. plasma membrane
b. cell wall
c. septum
d. origin

Biology & Microbiology

The K-T boundary layer of rock was formed during a mass extinction

Biology & Microbiology

A strictly fermentative bacterium produces energy

A) by glycolysis only. B) by aerobic respiration only. C) by fermentation or aerobic respiration. D) only in the absence of oxygen. E) only in the presence of oxygen.

Biology & Microbiology

All of the following are examples of post-transcriptional regulation except

A) cells can regulate translation by affecting how readily ribosomes associate with mRNA to read it. B) in eukaryotic cells, small noncoding RNAs that work in post-transcriptional regulation include microRNAs and short interfering RNAs. C) cells can regulate translation by methylating certain DNA nucleotides. D) in prokaryotic cells, small noncoding RNAs that work in post-transcriptional regulation include small RNAs. E) cells can regulate how mRNA is spliced and exported out of the nucleus before translation occurs.

Biology & Microbiology