The scientific study of organisms with the ultimate goal of characterizing and arranging them in an orderly manner is ________.
A. systematics
B. taxonomy
C. classification
D. identification
Answer: A
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Bacteria transformed with plasmids are plated on growth medium containing ampicillin and X-gal. White colonies on
the plate contain bacteria with a ____ plasmid, meaning the lacZ+ gene is ____.
a. recombinant; deleted from the plasmid b. nonrecombinant; intact c. recombinant; intact d. nonrecombinant; disrupted by the inserted DNA fragment e. recombinant; disrupted by the inserted DNA fragment
A requirement of cladistics is that a grouping must include ________.
A. a common ancestor and all its descendants B. species that can interbreed C. species with shared traits D. only living species
What term is used to indicate a characteristic that is shared and inherited from a common ancestor?
a. homologous trait b. analogous trait c. cladistic trait d. ancestral trait e. derived trait
If you were told to use a fluorescent antibody that binds to sodium channels to view the origin of nerve impulses, what area on the neuron would have the greatest antibody fluorescence?
A. trigger zone B. axon C. synapse D. Schwann cell E. dendrite