On Which Characteristic Is the WHO Classification System for Each

question 15

Multiple Choice

On which characteristic is the WHO classification system for each subgroup of myelodysplastic syndrome based?

• A) Peripheral blood and bone marrow morphology
• B) Cytogenetic abnormalities
• C) Number of cytopenias
• D) All of the above

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Definitions:

Major Organic Product

The primary substance produced in abundance from a chemical reaction that involves organic compounds.

Reaction Mechanism

The step-by-step sequence of elementary reactions by which overall chemical change occurs, illustrating how reactants are converted into products.

Substitution Reaction

A chemical process where one atom or group of atoms within a molecule is substituted by a different atom or group of atoms.

Mechanism

The sequential order of basic reactions that facilitate the overall process of chemical transformation.