When researchers compared gene expression in normal breast cells and cells from breast cancers, they found that the genes showing the most significant differences in expression encoded signal receptors. Explain why this result is not surprising.

Describe the disease infectious mononucleosis.

How is infectious mononucleosis acquired?

A 15-year-old male is diagnosed with infectious mononucleosis. When the patient asks how he got this disease, how should the nurse respond?

Match the drug effect or drug use with the appropriate drug.

a. bethanechol (Urecholine) b. ambenonium (Mytelase) c. scopolamine (Transderm Scop) d. echothiophate (Phospholine) e. atropine f. physostigmine g. pralidoxime (Protopam) h. donepezil (Aricept)

____ Used to treat nonobstructive urinary retention.

A patient is given desmopressin acetate. The nurse knows that this drug is used to treat which condition?
a. Gigantism
b. Diabetes mellitus
c. Diabetes insipidus
d. Adrenal insufficiency

Match the condition with the drug(s) used to treat it.

bacterial vaginosis: $\rule{5cm}{0.15mm}$

a. antibiotic combination of two drugs

b. HAART

c. IM penicillin

d. antibiotics

e. Flagyl

Match the condition with the drug(s) used to treat it.

used to treat $pyelonephritis$: $\rule{5cm}{0.15mm}$

a. antibiotic combination of two drugs

b. HAART

c. IM penicillin

d. antibiotics

e. Flagyl

Match the condition with the drug(s) used to treat it.

HIV: $\rule{5cm}{0.15mm}$

a. antibiotic combination of two drugs

b. HAART

c. IM penicillin

d. antibiotics

e. Flagyl

Match the condition with the drug(s) used to treat it.

PID: $\rule{5cm}{0.15mm}$

a. antibiotic combination of two drugs

b. HAART

c. IM penicillin

d. antibiotics

e. Flagyl

Which of the following statements correctly describes the urinary bladder anatomy?

a. The bladder neck is surrounded by the external urethral sphincter.

b. The detrusor muscle contains only two layers of smooth muscle.

c. The bladder is lined with transitional epithelium.

d. The bladder receives urine from the kidneys via the two urethras.

Cell differentiation always involves

(A) the transcription of the myoD gene.

(B) the movement of cells.

(C) the production of tissue-specific proteins.

(D) the selective loss of certain genes from the genome.

which of the following accurately describes kidney function?

The monthly profit for a small company that makes long-sleeve T-shirts depends on the price per shirt. If the price is too high, sales will drop. If the price is too low, the revenue brought in may not cover the cost to produce the shirts. After months of data collection, the sales team determines that the monthly profit is approximated by $f(p)=-50 p^{2}+1700 p-12,000,$ where p is the price per shirt and f(p) is the monthly profit based on that price. a. Find the price that generates the maximum profit. b. Find the maximum profit. c. Find the price(s) that would enable the company to break even.