TLS Online TPP Program

#Question id: 15662


You develop an inbred strain of mice that display one of two distinct syndromes. What evidence might lead you to believe that these mice are mutant for a gene or genes affected by imprinting?

#Unit 8. Inheritance Biology
  1. The two syndromes occur randomly in the colony of mice.
  2. All mice of  the same litter have the same syndrome
  3. All mice have the same syndrome as their mother.
  4. All mice have the same syndrome as their father.
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TLS Online TPP Program

#Question id: 11078

#Unit 7. System Physiology – Animal

A child has been eating round candies approximately 1 and 1.5 cm in diameter and inhaled one down his airway blocking his left bronchiole. Which of the following will describe the changes that occur?


TLS Online TPP Program

#Question id: 11079

#Unit 7. System Physiology – Animal

The diffusing capacity of a gas is the volume of gas that will diffuse through a membrane each minute for a pressure difference of 1 mm Hg. Which of the following gases is often used to estimate the oxygen diffusing capacity of the lungs?

TLS Online TPP Program

#Question id: 11080

#Unit 7. System Physiology – Animal

The O2-CO2 diagram here shows a ventilation-perfusion ratio line for the normal lung. Which of the following best describes the effect of decreasing ventilation-perfusion ratio on the alveolar Po2 and Pco2?


TLS Online TPP Program

#Question id: 11081

#Unit 7. System Physiology – Animal

In which of the following conditions is alveolar Po2 increased and alveolar Pco2 decreased?

TLS Online TPP Program

#Question id: 11082

#Unit 7. System Physiology – Animal

A 67-year-old man has a solid tumor that pushes against an airway partially obstructing air flow to the distal alveoli. Which point on the ventilation-perfusion line of the O2-CO2 diagram corresponds to the alveolar gas of these distal alveoli?


TLS Online TPP Program

#Question id: 11083

#Unit 7. System Physiology – Animal

A 55-year-old male has a pulmonary embolism that partially blocks the blood flow to his right lung. Which point on the ventilation-perfusion line of the O2-CO2 diagram corresponds to the alveolar gas of his right lung?