Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome. If a researcher moves the repressor gene (lacI), along with its promoter, to a position at some several thousand base pairs away from its normal position, which of the following results would be expected?

TLS Online TPP Program

#Question id: 12272

#Unit 7. System Physiology – Animal

A neonate develops a jaundice condition with a bilirubin concentration of 10 mg/dL on day 2 (normal is 3 mg/dL at 2 days old). The neonatologist can be confident that the condition is not erythroblastosis fetalis if which of the following is true?

TLS Online TPP Program

#Question id: 12273

#Unit 7. System Physiology – Animal

Which of the following findings would likely be reported in a patient with a deficiency in iodine intake?

TLS Online TPP Program

#Question id: 12274

#Unit 7. System Physiology – Animal

Before intercourse, a woman irrigates her vagina with a solution that lowers the pH of the vaginal fluid to 4.5. What will be the effect on sperm cells in the vagina?

TLS Online TPP Program

#Question id: 12275

#Unit 7. System Physiology – Animal

Two weeks after constricting the renal artery of a sole remaining kidney to initially reduce renal artery pressure by 20 mm Hg (from 100 to 80 mm Hg), which of the following changes would you expect, compared with before constriction of the artery?

TLS Online TPP Program

#Question id: 12276

#Unit 7. System Physiology – Animal

Because the usual rate of phosphate filtration exceeds the transport maximum for phosphate reabsorption, which of the following is true?

TLS Online TPP Program

#Question id: 12277

#Unit 7. System Physiology – Animal

A 45-year-old man adds lots of high-fiber wheat and bran foods to his diet to reduce his cholesterol. He loses 30 lb on the new diet, but has undesirable side effects such as stomach cramps, flatulence, and diarrhea. His gastroenterologist diagnoses a syndrome called gluten-enteropathy or celiac sprue. Which of the following is decreased in this man?