In selecting recombinant bacteria, cells are chosen that are resistant to a specific antibiotic. How are the bacteria made resistant?
A) They are pre-selected for the experiment on this basis.
B) The antibiotic resistance gene is encoded in the vector.
C) The antibiotic resistance gene is encoded on the donor insert.
D) Resistance is activated by the recombination event.
E) Resistance is activated when the cells are provided with the antibiotic
B
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Spiders and certain other arthropods which lack jaws or mandibles are placed in a subphylum called
A. Agnathae. B. Amandibulata. C. blood suckers. D. chelicerates. E. mandibulates.
______ and nitric oxide coordinate a plant's response to pathogens by closing stomata, thus preventing further entry.
Fill in the blank(s) with the appropriate word(s).
Wnt PCP pathway regulates (A)_________ by (B)_____________.
a. (A) cell movement, (B) activating transcription b. (A) proliferation, (B) activating transcription c. (A) cell movement, (B) reorganizing cytoskeleton d. (A) proliferation, (B) reorganizing cytoskeleton
Slime molds are in the supergroup
A. Stramenopila B. Opisthokonta C. Rhizaria D. Alveolata E. Amoebozoa