Answer the following questions true (T) or false (F)
1. Vaginosis may be experienced without accompanying vaginitis, but vaginitis always accompanies vaginosis.
2. A vaginal swab examined under the microscope reveals the presence of clue cells. Bacterial vaginosis is likely indicated.
3. Men, rather than women, make up the majority of syphilis cases.
1. FALSE
2. TRUE
3. TRUE
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Which of the following statements regarding the structure of blood vessels is incorrect?
A. In contrast to veins, arteries have higher blood pressure, more tissue layers, and are thinner vessels. B. Blood vessels are often found in parallel with lymphatic vessels. C. Capillaries have only a single layer of endothelium, rendering them fragile and leaky during an infection with a hemorrhagic fever virus. D. Connective tissue and muscle fibers are found in the layers of tissue surrounding both arteries and veins.
DNA polymerase III adds nucleotides ________
A) in the place of the primer RNA after it is removed B) to the 3' end of the RNA primer C) to both ends of the RNA primer D) to internal sites in the DNA template E) to the 5' end of the RNA primer
When adding Barritt's reagent to your MRVP broth, you see a red color change. This means that acetoin was produced of glucose metabolism.
a. true b. false
Plants gather the sun's energy with light-absorbing molecules called
a) pigments. b) thylakoids. c) chloroplasts. d) glucose.