Down Syndrome Is a Genetic Disorder That Results from

question 82

Multiple Choice

Down syndrome is a genetic disorder that results from

• A)the presence of an extra 21^st chromosome.
• B)an autosomal recessive gene.
• C)a sex-linked dominant gene.
• D)a specific combination of three recessive genes.
• E)the presence of three sex chromosomes usually XXY.

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Definitions:

Smallest Observation

The smallest observation, also known as the minimum value, is the lowest value in a set of data points.

3rd Quartile

A value below which 75% of the data points in a dataset fall.

Negatively Skewed Distribution

A probability distribution that is characterized by a long tail on the left side, indicating that the bulk of the values are concentrated to the right.

Smallest Observation

The lowest value recorded in a data set.