TLS Online TPP Program

#Question id: 794


A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which structural feature is found in the single-stranded DNA molecule?

#Part-B Specialized Branches in Biotechnology
  1. It can have a negatively-charged backbone composed of nitrogenous bases.

  2. Each 3’,5’-phosphodiester bond will contain one phosphate group linking two deoxyribose sugars.

  3. It can have one end with a 5’-phosphate group while the other end has a 2’-hydroxyl group.

  4. Each purine and pyrimidine will be paired with a complementary base.

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TLS Online TPP Program

#Question id: 11061

#Part-B Specialized Branches in Biotechnology

The pleural pressure of a normal 56-year-old woman is approximately −5 cm H2O during resting conditions immediately before inspiration (i.e., at functional residual capacity). What is the pleural pressure (in cm H2O) during inspiration?

TLS Online TPP Program

#Question id: 11062

#Part-B Specialized Branches in Biotechnology

The alveolar pressure of a normal 77-year-old woman is approximately 1 cm H2O during expiration. What is the alveolar pressure during inspiration (in cm H2O)?

TLS Online TPP Program

#Question id: 11063

#Part-B Specialized Branches in Biotechnology

A man inspires 1000 ml from a spirometer. The intrapleural pressure was −4 cm H2O before inspiration and −12 cm H2O the end of inspiration. What is the compliance of the lungs?

TLS Online TPP Program

#Question id: 11065

#Part-B Specialized Branches in Biotechnology

A liquid-ventilated lung compared to a gas-ventilated lung

TLS Online TPP Program

#Question id: 11066

#Part-B Specialized Branches in Biotechnology

A 22-year-old woman has a pulmonary compliance of 0.2 L/cm H2O and a pleural pressure of −4 cm H2O. What is the pleural pressure (in cm H2O) when the woman inhales 1.0 L of air?

TLS Online TPP Program

#Question id: 11068

#Part-B Specialized Branches in Biotechnology

A patient has a dead space of 150 ml, functional residual capacity of 3 L, tidal volume of 650 ml, expiratory reserve volume of 1.5 L, total lung capacity of 8 L, and respiratory rate of 15 breaths/min. What is the residual volume?