If a patient is diagnosed with a peptic ulcer, which genus of Proteobacteria is probably responsible?

a. Desulfovibrio
b. Campylobacter
c. Myxococcus
d. Helicobacter


Answer: d. Helicobacter

Biology & Microbiology

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An envelope

(a) surrounds the nucleus. (b) surrounds mitochondria. (c) consists of two membranes. (d) does all of the above.

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In a two-dimensional gel electrophoresis experiment, proteins are separated horizontally by ____

A. amino acid sequence B. molecular mass C. abundance D. isoelectric point

Biology & Microbiology

There will be approximately ____ mice in four

months in a population of 1,000 mice where 500 mice are born and 400 mice die monthly. a. 1,060 b. 1,160 c. 1,260 d. 1,360 e. 1,460

Biology & Microbiology

The convergence of evolutionary biology with genetics produced the unified evolutionary theory known as:

A) the origin of species. B) common descent with modification. C) the modern synthesis. D) polygenic inheritance.

Biology & Microbiology