A patient has a leg wound that is seeping and emitting a strong odor. The doctor suspects Clostridium bacteria may be present. What type of staining procedure might be used?
A) simple stain
B) spore stain
C) negative stain
D) acid-fast stain
Ans: B) spore stain
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The breakdown of alveoli causes
a. emphysema b. bronchitis c. pleurisy d. pneumothorax e. tuberculosis
In fruit flies, red eyes (pr+_) are dominant to purple eyes (prpr) and normal wings (vg+_) are dominant to vestigial wings (vgvg). The genes are located on the same chromosome
A purebreeding red-eyed fly with vestigial wings was crossed with a pure-breeding purple-eyed fly with normal wings. All of the F1 progeny had a WT phenotype. Which of the following represents the arrangement of alleles on the F1's chromosome? A) prvg/pr+vg+ B) pr+vg/prvg+ C) prpr+/vgvg+ D) prvg/prvg E) pr+vg+/pr+vg+
All of the following are functions of cartilage EXCEPT which one?
A) mineral (calcium, phosphorus) storage B) maintaining shape of body parts, such as nose and ears C) protection and cushioning of joints D) reduction of friction at joints E) prebone models in the fetus that develop into bones
The DNA polynucleotide structure contains which one of the following?
A. peptide bonds B. ribose C. sulfur D. adenine, guanine, cytosine, and thymine