A newly described bacterial species has been shown to use CO2 as its carbon source. Its energy source and its source of reducing power (electrons) are inorganic chemicals. Which term would best describe this nutritional type?
A. Chemolithoheterotroph
B. Photolithoheterotroph
C. Photoorganoheterotroph
D. Chemolithoatotroph
Answer: D
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The use of a double genus in a microorganism's label, such as Burkholderia (Pseudomonas), indicates that the bacterium:
a. does not fit well in either group but has some characteristics of both groups. b. is a genetic cross between the two groups. c. has been moved from one genus (Pseu-domonas) to another genus (Burkholde-ria). d. has been moved from one genus (Burk-holderia) to another genus (Pseudomo-nas).
What is the whitish looking feature below the eye in the lantern-eye fish pictured here?
In step 2 (above) in the identification of the colony that contains a targeted gene, ____
a. bacterial cells are cloned b. bacterial colonies are transferred c. bacterial cells are ruptured d. DNA is lysed e. cells with the targeted gene are identified
Epithelial tissue is least likely to:
a. contract. b. be specialized as sensory receptors. c. provide protection. d. regulate exchange of substances between parts of the body. e. produce and secrete cell products