A parent is trying to decrease the frequency of a child’s swearing behavior. The parent observes the child and writes down a description of the behavior, antecedents, and consequences each time the child swears. In this example, the parent is using which method of ABC observation?

In which group of organisms would you find polysomes?

A patient with acute respiratory distress syndrome has a plateau pressure (Pplat) of 30 cm H2O and a peak inspiratory pressure of 39 cm H2O. VT is 0.7 on VC-CMV. The decision is made to switch to PC-CMV (PCV) to keep pressures at a safe level. What pressure would you set and why?

In which group of organisms do ribosomes search from the 5′-end of mRNA for the first start codon rather than being lined up to a specific start codon at the start if translation?

Which of the following tRNA proofreading mechanisms should specifically reduce the frequency that the incorrect amino acid is activated to a aminoacyl-AMP?

The main function of the lungs is to bring air into contact with blood so that oxygen and carbon dioxide can be exchanged in the alveoli.

Who was William Knox D’Arcy and what was his significance? (NOTE: Answer should be 50-75 words)

The tiny air sacs of the lungs that support a network of capillaries from pulmonary blood vessels are the:

A 36-year-old female patient with a history of asthma is admitted to the ICU from the emergency department. Her respirations are 30, very labored, with accessory muscle use and bilateral inspiratory and expiratory wheezing. There is bilateral hyperresonance during chest percussion. A blood gas taken in the ICU after 1 hour of continuous aerosolized albuterol (15 mg) reveals: pH 7.38, partial pressure of carbon dioxide (PaCO2) 42 mm Hg, partial pressure of oxygen (PaO2) 53 mm Hg, oxygen saturation (SaO2) 88%, bicarbonate (HCO) 25 mEq/L with nasal cannula 6 L/min. The patient is 5’5″ and weighs 135 lb. The most appropriate action at this time is which of the following?

Promoter A that controls gene C and promoter B that controls gene D are both recognized by the σ70 subunit in E. coli. When the σ70 subunit is active, the transcription of gene C is initiated once every 30 seconds on average and the transcription of gene D is initiated once every 3 seconds on average. Which promoter has a greater affinity for the σ70 subunit?