The fact that certain people, although at high risk for HIV infection, do not seroconvert, leads to the realization that CD4 and coreceptors were required for HIV infection. The coreceptors are
a. CXCR4 and CCR5
b. CXCR4 and p41
c. CCR5 and nef
d. CCR5 and pol
A
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Cancerous tumors release a substance that causes blood vessels in the surrounding tissues to grow into the tumor to provide it with nutrients. This process is known as ________
A) encapsulation B) angiogenesis C) oncogenesis D) carcinogenesis
The entire text of primary research articles is most often found in
A) magazines. B) indexes. C) journals. D) abstracts.
Which of the following causes almost all cervical cancers?
A. syphilis B. human papillomavirus C. pelvic inflammatory disease D. trichomoniasis
Kara was tested for diabetes. Her fasting plasma glucose test showed a level of 120 mg/dL. This indicates that
A) Kara has diabetes. B) Kara has prediabetes. C) Kara has normal blood glucose levels. D) Kara's test results must be confirmed with an oral glucose tolerance test.