Which statement describes bacteria?
a. Most bacteria are harmful.
b. Bacteria only inhabit surfaces.
c. Bacteria outnumber human cells in our bodies.
d. Bacteria are restricted in their distribution to certain ecosystems.
e. Bacteria are the most common organisms in the Domain Eukarya.
ANSWER: c
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The cecum is
a. the first part of the large intestine. b. connects to the rectum. c. between the stomach and the small intestine. d. a producer of enzymes for digestion in the small intestine. e. more than one of these
Which of the following genetic diseases involve defects in DNA repair, which affects cell division?
A. Gaucher disease and Werner syndrome B. Kearns-Sayre syndrome and progeria C. Progeria and Werner syndrome D. Gaucher disease and cystic fibrosis E. Progeria and Werner syndrome
In the GAL gene system, which protein binds to the activation domain of the activator protein, ultimately blocking transcription in the absence of galactose?
What will be an ideal response?
Members of the Enterobacteriaceae can be distinguished from each other by
A. the presence or absence of the enzyme oxidase. B. the ability to ferment lactose. C. motility. D. both motility and the presence or absence of the enzyme oxidase. E. both motility and the ability to ferment lactose.