The Most Common of the Chromosomal Disorders Leading to Intellectual

question 159

Multiple Choice

The most common of the chromosomal disorders leading to intellectual disability is:

• A) Prader-Willi syndrome.
• B) autism.
• C) Down syndrome.
• D) fetal alcohol syndrome.

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Definitions:

Matter

Anything that occupies space and has mass, composed of atoms or molecules.

Mass

A property reflecting the amount of matter within an object, commonly measured in kilograms or grams.

Atomic Number

A fundamental characteristic of an element, indicating the number of protons in the nucleus of its atoms.

Avogadro's Number

A constant that represents the number of constituent particles, usually atoms or molecules, that are contained in one mole of a substance, approximately \(6.022 \times 10^{23}\).