If you were to genetically engineer a bacterial cell to produce a human protein, you would use a bacterial plasmid as the _____, or carrier of the human DNA
A. vector
B. probe
C. palindrome
D. recombiner
E. none of these
A
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Horizontal gene transfer
A) can accelerate evolution of a species. B) can inhibit evolution of a species. C) has no role in evolution. D) has a role in evolution only if the gene transfer is to a different species.
Shared ancestral characters may also be called:a
heteroplastic characters. b. synapomorphic characters. c. plesiomorphic characters. d. outgroups. e. phenetic characters.
Gene therapy is currently under investigation as a possible way to cure cystic fibrosis. How is the viral vector carrying the normal gene delivered to the affected cells?
A) injection B) bacterial plasmid C) nasal spray D) ingestion E) application to skin
In the annual cycle of a temperate lake, thermal stratification occurs when?
A. during the summer B. during fall overturn C. during summer and winter D. during spring overturn