A bacterium is found that can photosynthesize in the presence of light but uses hydrogen sulfide and releases elemental sulfur as a by-product. This organism can best be classified as a
A. photoautotroph.
B. pathogen.
C. photoheterotroph.
D. chemolithoautotroph.
E. chemoheterotroph.
Answer: C
Biology & Microbiology
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In positional cloning, which method is used to identify clones that are progressively closer to a gene of interest?
A. Chromosome painting B. Cytogenetic mapping C. Microsatellite analysis D. Chromosome walking
Biology & Microbiology
Explain the economic importance of xylem and its associated support tissues
What will be an ideal response?
Biology & Microbiology
Photosynthesis takes place in a specialized tissue of the leaf called
A. cuticle B. mesophyll C. stomata D. petiole
Biology & Microbiology
Most chemical digestion occurs in the
A) stomach. B) large intestine. C) mouth. D) small intestine. E) esophagus.
Biology & Microbiology