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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The annotation B refers to which DNA component?

A. Recombinant DNA

B. Plasmid DNA

C. Vector DNA

D. Insert DNA

Expert Explanatory Rationale

Correct Answer: Vector DNA

Question 2 of 5

A 26-year-old man was adopted. What health information related to his biological parents and family will be most useful to him when he gets married (select all that apply)?

A. Cholecystitis occurring in family members

B. Occurrence of prostate cancer in one uncle

C. Ages of family members diagnosed with diseases

D. Kidney stones present in extended family members

Expert Explanatory Rationale

Correct Answer: Ages of family members diagnosed with diseases

Question 3 of 5

Mutations in which of the following genes are considered a risk factor for Crohn's disease?

A. TLR-4

B. NOD2

C. NADPH oxidase

D. IL-2

Expert Explanatory Rationale

Correct Answer: NOD2

Question 4 of 5

What is a granuloma?

A. A type of antibody

B. A collection of macrophages filled with antigens

C. A cluster of mast cells

D. An antibody-antigen complex

Expert Explanatory Rationale

Correct Answer: A collection of macrophages filled with antigens

Question 5 of 5

As the nurse manager in a public health department,you are responsible for developing a plan to reduce the incidence of infection with the human immunodeficiency virus (HIV) in the community. Which nursing action is best delegated to health assistants working for the agency?

A. Supply injection drug users with bleach solution for cleaning needles and syringes.

B. Provide pretest and post-test counseling to those patients who are seeking HIV testing.

C. Educate high-risk community members about the use of condoms in HIV prevention.

D. Determine which population groups to target for education based on community assessment.

Expert Explanatory Rationale

Correct Answer: Supply injection drug users with bleach solution for cleaning needles and syringes.

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