Which of the Following Is True for the Mutated Erythroid

question 15

Multiple Choice

Which of the following is true for the mutated erythroid progenitors in polycythemia vera?

• A)They require extremely high levels of erythropoietin for growth in vitro.
• B)They are more resistant to apoptosis than normal erythroid progenitors.
• C)They mature abnormally, giving rise to a marked increase in poikilocytosis in peripheral blood.
• D)They are Philadelphia chromosome positive.

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Definitions:

Rheumatoid Arthritis

A chronic inflammatory disorder affecting joints, leading to pain, swelling, and potential joint deformity.

Fast-Twitch Fibers

A type of muscle fiber that contracts quickly and is used in short bursts of high-intensity activities, but tires more easily than slow-twitch fibers.

Slow-Twitch Fibers

Muscle fibers characterized by their slow contraction speed and high endurance capacity, primarily utilizing aerobic respiration for energy.

Olympic

Relating to the ancient or modern Olympic Games, a series of athletic competitions among representatives of various countries.