TLS Online TPP Program

#Question id: 3675


Which describes the role of primase during replication?

#Unit 3. Fundamental Processes
  1. It catalyzes the formation of phosphodiester bonds using NTPs as substrates.

  2. It coordinates synthesis of the leading strand and the lagging strand.

  3. It functions as a holoenzyme that polymerizes in the 3’→ 5’direction.

  4. It uses an exonuclease activity to remove incorrect nucleotides.

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TLS Online TPP Program

#Question id: 11946

#Unit 7. System Physiology – Animal

A 3-week-old infant is brought to the emergency room in a comatose condition. The history reveals that her parents have been feeding her concentrated, undiluted formula for 5 days. (Infant formula preparations are often sold in concentrated forms that must be properly diluted with water before feeding.) The infant’s plasma osmolality is 352 mOsm/L (normal is 280 to 300 mOsm/L), and the osmolality of the urine is 497 mOsm/L. What is the explanation for the hyperosmotic condition of the plasma?

TLS Online TPP Program

#Question id: 11947

#Unit 7. System Physiology – Animal

Why is milk produced only after delivery, not before?

TLS Online TPP Program

#Question id: 11948

#Unit 7. System Physiology – Animal

Which of the following increases the rate of excretion of calcium ions by the kidney?

TLS Online TPP Program

#Question id: 11949

#Unit 7. System Physiology – Animal

If a woman has a tumor secreting large amounts of estrogen from the adrenal gland, which of the following will occur?

TLS Online TPP Program

#Question id: 11950

#Unit 7. System Physiology – Animal

In a normal young man, what is the maximum pressure that can be achieved within the corpora cavernosa during a sexual experience?

TLS Online TPP Program

#Question id: 11951

#Unit 7. System Physiology – Animal

Very early in embryonic development, testosterone is formed within the male embryo. What is the function of this hormone at this stage of development?