The MOST Common of the Identified Chromosomal Causes of Down

question 171

Multiple Choice

The MOST common of the identified chromosomal causes of Down syndrome is:

• A) trisomy 21.
• B) mosaicism.
• C) translocation.
• D) PKU.

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Definitions:

Standard Deviation

A statistic that measures the dispersion or variability of a dataset relative to its mean, indicating how spread out the data points are.

Shaded Areas

In graphical representations, portions filled with color or patterns to distinguish them, often used to represent specific values, ranges, or sections in diagrams and charts.

Z-scores

Normalized values reflecting the distance of an element in terms of standard deviations from the mean.

Variable

A variable is an element, feature, or factor that is prone to vary or change, capable of taking on different values.