A bacterium that uses the oxidation of inorganic compounds to provide energy for manufacturing
nutritious organic compounds is a:
a. photoautotroph.
b. parasite.
c. saprotroph.
d. chemoautotroph.
e. pathogen.
D
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The removal of electrons from a compound is known as:
a. dehydration b. oxidation c. reduction d. phosphorylation e. a nonreversible chemical reaction
How can a replication error become a permanent mutation?
What will be an ideal response?
The nonliving components of an environment, such as weather and water availability, are
A) biotic components. B) abiotic components. C) genotypes. D) alleles. E) phenotypes.
When using vectors to produce proteins for gene therapy, what are some of the problems that may occur and how has medical science overcome these problems?
A. cDNA produced by vectors active an immune response, tags are therefore added to help the body identify them as self. B. Proteins injected using vectors get degraded too quickly and therefore protective segments have been added to the proteins. C. Virus vectors used may actually cause disease and therefore medical technicians have removed those segments. D. RNA added via vectors to a human may cause a toxic response and so a buffer is added to the vector.