The instillation of antibiotics in newborn's eyes will prevent ophthalmia neonatorum in newborns. This disease is caused by
A. Neisseria meningitidis.
B. Staphylococcus aureus.
C. Streptococcus pyogenes.
D. Neisseria gonorrhoeae.
E. Branhamella (Moraxella) catarrhalis.
Ans: D. Neisseria gonorrhoeae.
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Small cells function more effectively, because as cells become larger their surface area to volume ratio:
A. decreases. B. is cubed. C. increases. D. stays the same. E. is squared.
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
Some of these blood proteins are antibodies
A) albumins B) fibrins C) glucoses D) globulins
Figure 32.17
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Use the figure above showing a reflex arc to answer the following question.
Stretch-sensitive muscle spindles are indicated by the letter _____.
A. A B. B C. C D. D E. C and D