The incidence of tuberculosis in the year 2000 in the United States was 12.43/100,000 cases. This means
A. 12.43 of every 100,000 people in the United States had tuberculosis in the year 2000.
B. 12.43 of every 100,000 people died of tuberculosis in the United States in the year 2000.
C. there were 12.43 new cases of tuberculosis for every 100,000 people in the United States in the year 2000.
D. there were 12.43 tubercle bacilli per 100,000 microbes in the United States in the year 2000.
E. 12.43 of every 100,000 cases of tuberculosis were treated in the United States in the year 2000.
Answer: C
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A. 2 B. 4 C. 6 D. 8
Why is a false positive more significant in HIV testing of patients than in screening donated blood for transfusions?
A. It isn't-both are equally dangerous/significant. False-positives in PEOPLE can lead to psychological trauma, but false-positives in BLOOD could lead to the useful blood being disposed. B. A false-positive in a PERSON is easily retestable. This makes it more significant, because we would simply quickly retest the person to verify their actual HIV status. C. A false-positive in BLOOD is easily retestable. This makes it less significant, because we would simply quickly retest the blood to verify its actual HIV status. D. This statement is backwards-false-positives in blood testing are more significant. If the false-positive rate is high and we don't realize it, we're more likely to dispose useful blood. This could lead to acute shortages of blood for patients who need transfusions.
Conjugation is a process by which the bacterial cells
a. contact each other using a sex pilus to obtain new alleles. b. contact each other for gratification purposes. c. disrupt each other d. are infected with virus e. a bacteriophage carries DNA from one bacterium to another.
Diploid cells of animals and plants are genetically similar to fungal
A. dikaryotic hyphae (1n + 1n). B. homokaryotic hyphae. C. triploid cells. D. spores. E. monokaryotic hyphae.